Lenovo ThinkPad S5 2nd Generation Hardware Maintenance Manual [en, da, de, es, fi, fr, id, it, ko, nb, nl, pt, pt, sv, th, zc, zh]

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Hardware Maintenance Manual
ThinkPad S5 2nd Generation
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Note: Before using this information and the product it supports, be sure to read the general information
under Appendix A “Notices” on page 99.
Second Edition (June 2017)
© Copyright Lenovo 2017.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.
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About this manual . . . . . . . . . . . . iii
Chapter 1. Safety information. . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 1
Safety inspection guide. . . . . . . . . . . . . 3
Handling devices that are sensitive to electrostatic
discharge . . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Chapter 2. Important service
information . . . . . . . . . . . . . . . 21
Strategy for replacing FRUs . . . . . . . . . . 21
Strategy for replacing a hard disk drive or a
solid-state drive . . . . . . . . . . . . . 21
Important notice for replacing a system
board . . . . . . . . . . . . . . . . . 22
How to use error message . . . . . . . . . 22
Strategy for replacing FRUs for CTO, special-bid,
and standard models. . . . . . . . . . . . . 22
Product definition . . . . . . . . . . . . 22
FRU identification. . . . . . . . . . . . 23
Chapter 3. General checkout . . . . . 25
What to do first . . . . . . . . . . . . . . . 25
Checkout guide . . . . . . . . . . . . . . . 26
Diagnosing problems . . . . . . . . . . . 26
Quick test programs . . . . . . . . . . . 27
UEFI diagnostic program . . . . . . . . . 27
Bootable diagnostic programs . . . . . . . 27
Power system checkout . . . . . . . . . . . 28
Checking the ac power adapter . . . . . . . 28
Checking the built-in batteries and operational
charging . . . . . . . . . . . . . . . . 29
Checking the coin-cell battery . . . . . . . 29
Chapter 4. Related service
information . . . . . . . . . . . . . . . 31
Recovery information . . . . . . . . . . . . 31
Resetting your computer . . . . . . . . . 31
Using advanced startup options . . . . . . 31
Recovering your operating system if Windows
10 fails to start . . . . . . . . . . . . . 32
Creating and using a recovery USB drive . . . 32
Passwords. . . . . . . . . . . . . . . . . 32
Power-on password . . . . . . . . . . . 33
Hard disk password . . . . . . . . . . . 33
Supervisor password . . . . . . . . . . . 33
How to remove the power-on password . . . 33
How to remove the hard disk password. . . . 34
Power management . . . . . . . . . . . . . 34
Sleep mode . . . . . . . . . . . . . . 35
Hibernation mode . . . . . . . . . . . . 35
Symptom-to-FRU index . . . . . . . . . . . 35
Numeric error codes . . . . . . . . . . . 36
Error messages . . . . . . . . . . . . . 37
Beep symptoms . . . . . . . . . . . . . 38
No-beep symptoms . . . . . . . . . . . 39
LCD-related symptoms . . . . . . . . . . 40
Intermittent problems. . . . . . . . . . . 40
Undetermined problems . . . . . . . . . 40
Chapter 5. Status indicators . . . . . 43
Chapter 6. Function keys . . . . . . . 45
Chapter 7. Locations . . . . . . . . . 47
Locating computer controls, connectors, and
indicators . . . . . . . . . . . . . . . . . 47
Front view . . . . . . . . . . . . . . . 47
Rear view . . . . . . . . . . . . . . . 48
Bottom view . . . . . . . . . . . . . . 48
Locating FRUs and CRUs . . . . . . . . . . . 49
Major FRUs and CRUs . . . . . . . . . . 50
LCD FRUs . . . . . . . . . . . . . . . 52
Connector and cable guide . . . . . . . . 53
Looking up FRU information . . . . . . . . . . 58
Chapter 8. FRU replacement
notices . . . . . . . . . . . . . . . . . 59
Screw notices . . . . . . . . . . . . . . . 59
Retaining serial numbers . . . . . . . . . . . 60
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . . . . 60
Retaining the UUID. . . . . . . . . . . . 61
Reading or writing the ECA information . . . . 61
Chapter 9. Removing or replacing a
FRU. . . . . . . . . . . . . . . . . . . 63
General guidelines. . . . . . . . . . . . . . 63
Before servicing the computer . . . . . . . . . 64
Disabling the built-in battery . . . . . . . . 64
1010 Bottom cover . . . . . . . . . . . . . 64
1020 Battery . . . . . . . . . . . . . . . . 65
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1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state
drive cable . . . . . . . . . . . . . . . . . 65
1040 M.2 solid-state drive and M.2 solid-state
drive bracket . . . . . . . . . . . . . . . . 67
1050 Keyboard . . . . . . . . . . . . . . . 68
1060 Base cover assembly . . . . . . . . . . 70
1070 Memory module . . . . . . . . . . . . 71
1080 Wireless LAN card . . . . . . . . . . . 73
1090 Coin-cell battery and Ethernet bracket. . . . 74
1100 Media-card-reader card, the media-card­reader card bracket, and the media-card-reader
card cable . . . . . . . . . . . . . . . . . 75
1110 ThinkPad LED card . . . . . . . . . . . 77
1120 Thermal fan and the PCH bracket . . . . . 79
1130 dc-in connector with cable . . . . . . . . 81
1140 Power button card and dc-in LED card . . . 82
1150 System board . . . . . . . . . . . . . 84
1160 Speaker assembly . . . . . . . . . . . 86
1170 Keyboard bezel assembly . . . . . . . . 87
2010 LCD unit . . . . . . . . . . . . . . . 89
2020 LCD bezel. . . . . . . . . . . . . . . 91
2030 LCD hinges . . . . . . . . . . . . . . 92
2040 LCD panel and LCD cable . . . . . . . . 92
2050 Wireless LAN antenna assembly . . . . . . 94
2060 Camera/microphone module, camera/
microphone cable, and the LCD rear cover . . . . 96
Appendix A. Notices. . . . . . . . . . 99
Electronic emission notices . . . . . . . . . . 100
Trademarks . . . . . . . . . . . . . . . . 100
Appendix B. Abbreviation and
acronym table . . . . . . . . . . . . . 101
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About this manual

This manual contains service and reference information for the following ThinkPad® product:
ThinkPad S5 2nd Generation Machine type (MT) 20JA
Use this manual along with the advanced diagnostic tests to troubleshoot problems.
Important:
This manual is intended only for trained service technicians who are familiar with ThinkPad products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. Before servicing a ThinkPad product, be sure to read all the information under Chapter 1 “Safety information” on page 1 and Chapter 2 “Important service information” on page 21.
© Copyright Lenovo 2017 iii
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Chapter 1. Safety information

This chapter presents the following safety information that you need to be familiar with before you service a ThinkPad notebook computer.
• “General safety” on page 1
• “Electrical safety” on page 1
• “Safety inspection guide” on page 3
• “Handling devices that are sensitive to electrostatic discharge” on page 3
• “Grounding requirements” on page 4
• “Safety notices (multilingual translations)” on page 4

General safety

Follow these rules to ensure general safety:
• Observe good housekeeping in the area of the machines during and after maintenance.
• When lifting any heavy object:
1. Ensure that you can stand safely without slipping.
2. Distribute the weight of the object equally between your feet.
3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you.
• Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.
• Before you start the machine, ensure that other service technicians and the customer's personnel are not in a hazardous position.
• Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine.
• Keep your toolcase away from walk areas so that other people will not trip over it.
• Do not wear loose clothing that can be trapped in the moving parts of a machine. Ensure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.
• Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, about 8 centimeters (3 inches) from the end.
• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing, because metal objects are good electrical conductors.
• Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes.
• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.
• Reinstall all covers correctly before returning the machine to the customer.
• Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers.

Electrical safety

Observe the following rules when working on electrical equipment.
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Important:
• Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.
• Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges (ESD). Do not use this type of mat to protect yourself from electrical shock.
• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.
• Do not work alone under hazardous conditions or near equipment that has hazardous voltages.
• Disconnect all power before: – Performing a mechanical inspection – Working near power supplies – Removing or installing main units
• Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power off the wall box that supplies power to the machine, and to lock the wall box in the off position.
• If you need to work on a machine that has exposed electrical circuits, observe the following precautions: – Ensure that another person, familiar with the power-off controls, is near you. That person must be there
to switch off the power, if necessary.
– Use only one hand when working with powered-on electrical equipment; keep the other hand in your
pocket or behind your back.
CAUTION: An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body.
– When using testers, set the controls correctly and use the approved probe leads and accessories for
that tester.
– Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as
metal floor strips and machine frames.
Observe the special safety precautions when you work with very high voltages. Instructions for these precautions are in the safety sections of maintenance information. Use extreme care when measuring high voltages.
• Regularly inspect and maintain your electrical hand tools for safe operational condition.
• Do not use worn or broken tools and testers.
• Never assume that power has been disconnected from a circuit. First, check that it has been powered off.
• Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds.
• Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage.
• Do not service the following parts with the power on: – Power supply units – Pumps – Blowers and fans – Motor generators – Units similar to those listed above
This practice ensures correct grounding of the units.
• If an electrical accident occurs: – Use caution; do not become a victim yourself. – Switch off power. – Send another person to get medical aid.
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Safety inspection guide

The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service technicians from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-ThinkPad features or options not covered by this inspection guide.
If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem.
Consider these conditions and the safety hazards they present:
• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock)
• Explosive hazards, such as a damaged CRT face or a bulging capacitor
• Mechanical hazards, such as loose or missing hardware
To determine whether there are any potentially unsafe conditions, use the following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected.
Checklist:
1. Check exterior covers for damage (loose, broken, or sharp edges).
2. Turn off the computer. Disconnect the power cord.
3. Check the power cord for:
a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground
continuity for 0.1 ohm or less between the external ground pin and the frame ground.
b. The power cord should be the authorized type specified for your computer. Go to:
www.lenovo.com/serviceparts-lookup
c. Insulation must not be frayed or worn.
4. Check for cracked or bulging batteries.
5. Remove the cover.
6. Check for any obvious non-ThinkPad alterations. Use good judgment as to the safety of any non­ThinkPad alterations.
7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.
8. Check for worn, frayed, or pinched cables.
9. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.
.
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Handling devices that are sensitive to electrostatic discharge

Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.
Notes:
1. Use product-specific ESD procedures when they exceed the requirements noted here.
Chapter 1. Safety information 3
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2. Ensure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.
When handling ESD-sensitive parts:
• Keep the parts in protective packages until they are inserted into the product.
• Avoid contact with other people.
• Wear a grounded wrist strap against your skin to eliminate static on your body.
• Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap.
• Use a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices.
• Select a grounding system, such as those listed below, to provide protection that meets the specific service requirement.
Note: The use of a grounding system to guard against ESD damage is desirable but not necessary.
– Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.
– When working on a double-insulated or battery-operated system, use an ESD common ground or
reference point. You can use coax or connector-outside shells on these systems.
– Use the round ground prong of the ac plug on ac-operated computers.

Grounding requirements

Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.

Safety notices (multilingual translations)

The safety notices in this section are provided in the following languages:
• English
• Arabic
• Brazilian Portuguese
• French
• German
• Hebrew
• Japanese
• Korean
• Spanish
• Traditional Chinese
DANGER
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DANGER
DANGER
DANGER
DANGER
DANGER
DANGER
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DANGER
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PERIGO
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PERIGO
PERIGO
PERIGO
PERIGO
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PERIGO
PERIGO
PERIGO
DANGER
DANGER
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DANGER
DANGER
DANGER
DANGER
DANGER
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DANGER
VORSICHT
VORSICHT
VORSICHT
VORSICHT
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VORSICHT
VORSICHT
VORSICHT
VORSICHT
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Chapter 2. Important service information

This chapter introduces the following important service information that applies to all machine types supported by this manual:
• “Strategy for replacing FRUs” on page 21 – “Strategy for replacing a hard disk drive or a solid-state drive” on page 21 – “Important notice for replacing a system board” on page 22 – “How to use error message” on page 22
• “Strategy for replacing FRUs for CTO, special-bid, and standard models” on page 22 – “Product definition” on page 22 – “FRU identification” on page 23
Important:
• Advise customers to contact the Lenovo obtaining or installing any software fixes, drivers, and UEFI BIOS downloads. Telephone numbers for Lenovo Support are available at:
http://www.lenovo.com/support/phone
• System disassembly and reassembly videos that show the FRU removal or replacement procedures for the Lenovo authorized service technicians are available at:
http://www.lenovoservicetraining.com/ion/
®
Customer Support Center if they need any assistance in

Strategy for replacing FRUs

Before replacing parts:
Ensure that all software fixes, drivers, and UEFI BIOS downloads are installed before you replace any FRUs listed in this manual.
After a system board is replaced, ensure that the latest UEFI BIOS is loaded to the system board before you complete the service action.
To download and install software fixes, drivers, and UEFI BIOS, go to and follow the instructions on the screen.
Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs:
http://www.lenovo.com/ThinkPadDrivers
• If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the original FRU before you continue.
• Some computers have both a processor board and a system board. If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that board, and then replace the other one.
• If an adapter or a device consists of more than one FRU, any of the FRUs might be the cause of the error. Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms.

Strategy for replacing a hard disk drive or a solid-state drive

Always try to run a low-level format operation before replacing a hard disk drive or a solid-state drive. This will cause all customer data on the drive to be lost. Ensure that the customer has a current backup of the data before you perform this task.
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Attention: The drive startup sequence in the computer you are servicing might have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten.

Important notice for replacing a system board

Some components mounted on a system board are very sensitive. Improper handling of a system board can cause damage to those components, and may cause a system malfunction.
Attention: When handling a system board:
• Do not drop a system board or apply any excessive force to it.
• Avoid rough handling of any kind.
• Avoid bending a system board and hard pushing to prevent cracking at each Ball Grid Array (BGA) chipset.

How to use error message

Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code. Whatever causes the first error code might also cause false error codes. If no error code is displayed, see whether the error symptom is listed in the “Symptom-to-FRU Index” for the computer you are servicing.

Strategy for replacing FRUs for CTO, special-bid, and standard models

This topic provides information about the model types and FRU identification.

Product definition

This topic introduces different model types and how to identify each type.
Dynamic Configure To Order (CTO) model
This model provides the ability for a customer to configure a Lenovo solution from a Web site, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and eSupport will load these products as the 4-character MT, 4-character model, and 2-character country code. The model is “CTO1” and the default country code is “WW” (example: 20AACTO1WW).
Special-bid model
This model is a unique configuration that has been negotiated between Lenovo and the customer. A unique MTM consists of a 4-character MT, a 4-character model, and a numeric 2-character country code is provided to the customer to place orders (example: 20AA000955). The country code assigned is numeric and does not designate a specific country or region. The custom model factsheet for the MTM indicates which country the special-bid MTM is set up for. Special-bid offering is not generally announced.
Standard model
Standard models (fixed configuration) are announced and offered to all customers. The MTM portion of the machine label consists of a 4-character MT, a 4-character model, and an alphabetic 2-character country code. The country code assigned is alphabetic and represents a designated country or region (example: 20AA0009UK).
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FRU identification

Use Lenovo eSupport to identify major FRUs, FRU part numbers, and FRU descriptions for a product at an MT - serial number level. Examples of major FRUs are hard disk drive, system board, and liquid crystal display (LCD).
To identify the major FRUs for a product, do the following:
1. Go to:
http://support.lenovo.com/ibasepartslookup
2. Type the Machine Type and Serial Number in the corresponding fields.
3. Click Submit.
eSupport also can be used to view the general FRU list for a product. The FRU list is a general list of components and does not contain specific model information.
To get the general FRU list for a product, do the following:
1. Go to:
http://www.lenovo.com/support
2. Follow the instructions on the screen to select a product.
3. Click the Product & Parts tab.
4. Select System Service Parts to view a general FRU list.
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Chapter 3. General checkout

This chapter presents following information:
• “What to do first” on page 25
• “Checkout guide” on page 26
• “Power system checkout” on page 28
Some descriptions in this chapter might not apply to your particular computer.
Before you go to the checkout guide, be sure to read the following important notes.
Important notes:
Only certified trained personnel should service the computer.
Before replacing any FRU, read the entire page on removing and replacing FRUs.
When you replace FRUs, it is recommended to use new nylon-coated screws.
Be extremely careful during such write operations as copying, saving, or formatting. Drives in the computer that you are servicing sequence might have been altered. If you select an incorrect drive, data or programs might be overwritten.
Replace a FRU only with another FRU of the correct model. When you replace a FRU, ensure that the model of the machine and the FRU part number are correct.
A FRU should not be replaced because of a single, unreproducible failure. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, ESD, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU.
Be careful not to replace a nondefective FRU.

What to do first

When you return a FRU, you must include the following information in the parts exchange form or parts return form that you attach to it:
1. Name and phone number of service technician
2. Date of service
3. Date on which the machine failed
4. Date of purchase
5. Failure symptoms, error codes appearing on the display, and beep symptoms
6. Procedure index and page number in which the failing FRU was detected
7. Failing FRU name and part number
8. Machine type, model number, and serial number
9. Customer's name and address
Note: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer. Following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was subject to stress beyond normal use.
Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list:
The following are not covered under warranty:
• LCD panel cracked from the application of excessive force or from being dropped
• Scratched (cosmetic) parts
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• Distortion, deformation, or discoloration of the cosmetic parts
• Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force
• Damage caused by liquid spilled into the system
• Damage caused by the improper insertion of a PC card or the installation of an incompatible card
• Fuses blown by attachment of a nonsupported device
• Forgotten computer password (making the computer unusable)
• Sticky keys caused by spilling a liquid onto the keyboard
• Use of an incorrect ac power adapter on laptop products
The following symptoms might indicate damage caused by nonwarranted activities:
• Missing parts might be a symptom of unauthorized service or modification.
• Check for obvious damage to a hard disk drive. If the spindle of a hard disk drive becomes noisy, the hard disk drive might have been dropped or subject to excessive force.

Checkout guide

Use the following procedures as a guide in identifying and correcting problems with the ThinkPad notebook computer.
Note: The diagnostic tests are intended to test only ThinkPad products. The use of non-ThinkPad products, prototype cards, or modified options can lead to false indications of errors and invalid system responses.
1. Identify the failing symptoms in as much detail as possible.
2. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the operation.

Diagnosing problems

Many computer problems can be solved without outside assistance. If you experience a problem with your computer, the first place to start is the troubleshooting information in your computer documentation. If you suspect a software problem, see the documentation, including readme files and help information systems, that come with the operating system or program. ThinkPad notebook computers come with a set of diagnostic programs that you can use to help you identify hardware problems.
Diagnosing problems with Lenovo Companion
Lenovo Companion is preinstalled on your computer and also is available for download at:
https://shop.lenovo.com/us/en/accessories/software/apps/lenovo-apps/companion/
Note: If you are unable to isolate and repair the problem yourself after running Lenovo Companion, save and print the log files created by the program. You need the log files when you speak to a Lenovo technical support representative.
Lenovo Companion supports the hardware scan function. It combines diagnostic tests, system information collection, security status, and support information, along with hints and tips for optimal system performance.
The troubleshooting information or the diagnostic programs might tell you that you need additional or updated device drivers or other software. You can get the latest technical information and download device drivers and updates from the Lenovo Support Web site at:
http://www.lenovo.com/support
For additional information, see the Lenovo Companion help system.
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Quick test programs

Run the following quick test programs to troubleshoot and resolve computer problems, especially when the computer does not have the Lenovo Solution Center program installed.
To run a test using a quick test program, do the following:
1. Go to the C:\SWTOOLS\ldiag directory.
2. Double-click the lsc_lite.exe file.
3. When the User Account Control window opens, if any, click Yes.
4. Select the device class to be tested.
5. Select the devices to be tested.
6. Select the test to be performed.
7. Follow the instructions on the screen to start the test. When a problem is detected, information messages are displayed. Refer to the messages to troubleshoot the problem.

UEFI diagnostic program

A UEFI diagnostic program is preinstalled on the computer. It enables you to test memory modules and internal storage devices, view system information, and check and recover bad sectors on internal storage devices.
To run the UEFI diagnostic program, do the following:
1. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page 28, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on page 35 for error code descriptions and troubleshooting hints.
2. When the ThinkPad logo is displayed, repeatedly press and release the F10 key. The main screen of the UEFI diagnostic program is displayed.
3. Follow the instructions on the screen to use the program.
The following table displays the main items of the UEFI diagnostic program. Depending on the model, the items might differ slightly.
Table 1. Items on the main screen of the UEFI diagnostic program
Tests Tools
• Memory quick test
• Memory extended test
• Memory bit fade test (180 min)
• Quick storage device test
• LCD test
• PCI-e test
• Motherboard buses test
• Exit application
• System information
• Generate configuration file
• Execute from configuration file
• Recover bad sectors tool
Note: The recover bad sectors tool is only available on computers that have hard disk drives installed.

Bootable diagnostic programs

If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a bootable diagnostic program from the Lenovo Support Web site. The bootable diagnostic programs enable you to test computer memory and internal storage devices, view system information, and check and recover the internal storage devices. To use the bootable diagnostic programs, you can create a bootable diagnostic medium on a USB device or CD.
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To create a bootable diagnostic medium, do the following:
1. Go to
2. Click Lenovo Bootable Diagnostics.
3. Follow the instructions on the Web site to create a bootable diagnostic medium on a USB device or CD.
To use the diagnostic medium you have created, do the following:
• If you have created the bootable diagnostic medium on a USB device, do the following:
http://www.lenovo.com/diags.
1. Attach the USB device to the computer.
2. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page 28, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on page 35 for error code descriptions and troubleshooting hints.
3. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot Menu window opens, release the F12 key.
4. Use the arrow keys to select USB HDD and then press Enter. The diagnostic program will be launched automatically.
5. Follow the instructions on the screen to use the diagnostic program.

Power system checkout

To verify if a battery pack or an ac power adapter is functional, do the following:
1. Turn off the computer.
2. Connect the ac power adapter.
3. Turn on the computer. If the computer can be turned on, it means that either the battery pack or the ac power adapter is functional.
4. Insert a straightened paper clip into the emergency reset hole to reset the computer. If the computer is still powered on, it means that the ac power adapter is functional.
5. Turn off the computer.
6. Disconnect the ac power adapter and turn on the computer. If the computer can be turned on, it means that the battery is functional.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
• “Checking the ac power adapter” on page 28
• “Checking the built-in batteries and operational charging” on page 29
• “Checking the coin-cell battery” on page 29

Checking the ac power adapter

You are here because the computer fails only when the ac power adapter is used.
• If the system-status indicator does not blink three times when an ac power source is connected, check the power cord of the ac power adapter for correct continuity and installation.
• If the computer does not charge during operation, go to “Checking the built-in batteries and operational charging” on page 29.
To check the ac power adapter, do the following:
1. Unplug the ac power adapter cable from the computer.
2. Measure the output voltage at the plug of the ac power adapter cable.
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(20V)
1
3 2
Pin
1 +20
2 0
3
Voltage (V dc)
Ground
Note: Output voltage across pin 2 of the ac power adapter might differ from the one you are servicing.
3. If the voltage is not correct, replace the ac power adapter.
4. If the voltage is acceptable, replace the system board.
Note: Noise from the ac power adapter does not always indicate a defect.

Checking the built-in batteries and operational charging

This computer supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized builder. The system does not support unauthorized batteries or batteries designed for other systems. If an unauthorized battery or a battery designed for another systems is installed, the system will not charge.
Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use.
Move your pointer to the battery-status icon in the Windows notification area to check the battery status. The battery-status icon displays the percentage of battery power remaining and how long you can use your computer before you must charge the battery.
To check whether the battery pack charges correctly during operation, do the following:
1. Discharge the battery until the remaining battery power is less than 50%.
2. Connect the computer to ac power to charge the battery pack. If the battery status icon in the Windows notification area indicates that the batteries are not charging, remove the battery and let them return to room temperature.
Note: The built-in batteries are NOT customer replaceable. Contact a qualified Lenovo technician to replace the built-in batteries.
3. Reinstall the battery pack. If the batteries are still not charging, replace the battery pack.
4. Check the battery status icon again. If the same error still exists, replace the system board.

Checking the coin-cell battery

To check the coin-cell battery, do the following:
1. Disable the built-in battery. See “Disabling the built-in battery” on page 64
2. Remove the coin-cell battery. See “1090 Coin-cell battery and Ethernet bracket” on page 74
3. Measure the voltage of the battery. See the following figure.
Wire Voltage (V dc)
Red +2.5 to +3.2
Black Ground
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• If the voltage is correct, replace the system board.
• If the voltage is not correct, replace the coin-cell battery.
• If the coin-cell battery discharges quickly after replacement, replace the system board.
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Chapter 4. Related service information

This chapter presents following information:
• “Recovery information” on page 31
• “Passwords” on page 32
• “Power management” on page 34
• “Symptom-to-FRU index” on page 35
Service Web site:
When the latest maintenance diskette and the system program service diskette become available, they will be posted on:
http://www.lenovo.com/support

Recovery information

The Windows recovery programs enable you to reset your computer or use advanced startup options.
It is recommended that you create a recovery USB drive as early as possible. Store the recovery USB drive as a backup or replacement for the Windows recovery programs.
For more information, see “Creating and using a recovery USB drive” on page 32.

Resetting your computer

If your computer does not perform well, you might consider resetting your computer. In the resetting process, you can choose to keep your files or remove them, and then reinstall the Windows operating system.
To reset your computer, do the following:
Note: The graphical user interface (GUI) items of the operating system might change without notice.
1. Open the Start menu, and then click Settings Update & security Recovery.
2. In the Reset this PC section, click Get started.
3. Follow the instructions on the screen to reset your computer.

Using advanced startup options

With advanced startup options, you can change the firmware settings of the computer, change the startup settings of the Windows operating system, start the computer from an external device, or restore the Windows operating system from a system image.
To use advanced startup options, do the following:
Note: The GUI items of the operating system might change without notice.
1. Open the Start menu, and then click Settings Update & security Recovery.
2. In the Advanced startup section, click Restart now Troubleshoot Advanced options.
3. Select a desired startup option, then follow the instructions on the screen.
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Recovering your operating system if Windows 10 fails to start

The Windows recovery environment on your computer is capable of operating independently from the Windows 10 operating system. This enables you to recover or repair the operating system even if the Windows 10 operating system fails to start.
After two consecutive failed boot attempts, the Windows recovery environment starts automatically. Then you can choose repair and recovery options by following the instructions on the screen.
Note: Ensure that your computer is connected to ac power during the recovery process.

Creating and using a recovery USB drive

You can create a recovery USB drive as a backup for the Windows recovery programs. With the recovery USB drive, you can troubleshoot and fix the problems even if the preinstalled Windows recovery programs are damaged.
Creating a recovery USB drive
The USB drive that you use to create the recovery USB drive must be at least 16 GB of storage. The actual USB capacity that is required depends on the size of the recovery image.
Attention: The creation process deletes anything stored on the USB drive. To avoid data loss, make a backup copy of all the data that you want to keep.
To create a recovery USB drive, do the following:
Note: Ensure that your computer is connected to ac power during the following process.
1. Connect a proper USB drive (at least 16 GB of storage).
2. Type recovery in the search box on the taskbar. Then click Create a recovery drive.
3. Click Yes in the User Account Control window to allow the Recovery Media Creator program to start.
4. In the Recovery Drive window, follow the on-screen instructions to create a recovery USB drive.
Using the recovery USB drive
If you cannot start your computer, use the recovery USB drive to recover your computer.
To use a recovery USB drive, do the following:
Note: Ensure that your computer is connected to ac power.
1. Connect the recovery USB drive to the computer.
2. Turn on or restart the computer. Before the Windows operating system starts, repeatedly press the F12 key. The Boot Menu window opens.
3. Select the recovery USB drive as the boot device.
4. Select a preferred keyboard layout.
5. Click Troubleshoot to display the optional recovery solutions.
6. Select a corresponding recovery solution according to your situation. Then follow the instructions on the screen to complete the process.

Passwords

As many as three passwords might be needed for a ThinkPad notebook computer: the power-on password, the hard disk password, and the supervisor password.
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If any of these passwords has been set, a prompt for it will be displayed on the screen whenever the computer is turned on. The computer does not start until the password is entered.
Note: If only a supervisor password is set, the password prompt will not be displayed when the operating system is started.

Power-on password

A power-on password protects the system from being turned on by an unauthorized person. The password must be entered before the operating system can be started. For instructions on how to remove the power­on password, see “How to remove the power-on password” on page 33.

Hard disk password

There are two kinds of hard disk passwords:
• User hard disk password - for the user
• Master hard disk password - for the system administrator, who can use it to get access to the hard disk even if the user has changed the user hard disk password
Note: There are two modes for the hard disk password: User only and Master + User. The Master + User mode requires two hard disk passwords; the system administrator enters both in the same operation. The system administrator then provides the user hard disk password to the system user.
Attention: If the user hard disk password has been forgotten, check whether a master hard disk password has been set. If a master hard disk password has been set, it can be used to access the hard disk drive. If no master hard disk password is available, neither Lenovo nor Lenovo authorized service technicians provide any services to reset either the user hard disk password or the master hard disk password, or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.
For instructions on how to remove the hard disk password, see “How to remove the hard disk password” on page 34.

Supervisor password

The supervisor password protects the system information stored in the ThinkPad Setup program. It provides the following security features:
• If only a supervisor password is set, a password prompt is displayed when you try to start the ThinkPad Setup program. Unauthorized users cannot change most of the system configuration options in the ThinkPad Setup program without the password.
• The system administrator can use the supervisor password to access a computer even if the user of that computer has set a power-on password. The supervisor password overrides the power-on password.
• The system administrator can set the same supervisor password on many ThinkPad notebook computers to make administration easier.
Attention: If the supervisor password has been forgotten and cannot be made available to the service technician, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee.

How to remove the power-on password

To remove the power-on password, do one of the following:
If no supervisor password has been set, do the following to remove the power-on password:
1. Turn off the computer.
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2. Remove the built-in battery. For instructions on how to remove the built-in battery, see “1020 Battery” on page 65.
3. Reinstall the coin-cell battery. For instructions on how to install the coin-cell battery, see “1090 Coin-cell battery and Ethernet bracket” on page 74.
4. Reinstall the built-in battery. For instructions on how to reinstall the built-in batteries, see “1020 Battery” on page 65.
5. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does not appear. The power-on password has been removed.
If a supervisor password has been set and is known to the service technician, do the following to remove the power-on password:
1. Turn on the computer.
2. When the ThinkPad logo is displayed, immediately press F1.
3. Type the supervisor password to enter the ThinkPad Setup program.
4. Select Security.
5. Select Password.
6. Select Power-On Password.
7. Type the current supervisor password in the Enter Current Password field. Then, leave the Enter New Password field blank, and press Enter twice.
8. In the Changes have been saved window, press Enter.
9. Press F10 to save changes and exit the ThinkPad Setup program.

How to remove the hard disk password

Attention: If User only mode is selected and the user hard disk password has been forgotten and cannot be
made available to the service technician, neither Lenovo nor Lenovo authorized service technicians provide any services to reset the user hard disk password, or to recover data from the hard disk drive. To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the hard disk drive or solid-state drive with a scheduled fee.
To remove a user hard disk password that has been forgotten, when the supervisor password and the master hard disk password are known, do the following:
1. Turn on the computer.
2. When the logo is displayed, immediately press F1 to enter the ThinkPad Setup program.
3. Select Security.
4. Select Password.
5. Select Hard-disk x password where x is the letter of the hard disk drive. A pop-up window opens.
6. Select Master hard disk password.
7. Type the current master hard disk password in the Enter Current Password field. Then, leave the Enter New Password field blank, and press Enter twice.
8. Press F10 to save changes and exit the ThinkPad Setup program. The user hard disk password and the master hard disk password have been removed.

Power management

To reduce power consumption, the computer has three power management modes: screen blank, sleep, and hibernation.
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Sleep mode

When the computer enters sleep mode, the following events occur in addition to what occurs in screen blank mode:
• The LCD is powered off.
• The hard disk drive or solid-state drive is powered off.
• The microprocessor stops.
To put your computer into sleep mode, click
In certain circumstances, the computer goes into sleep mode automatically:
• After a period of inactivity specified in power plan settings
• When the battery power is low
To cause the computer to return from sleep mode and resume operation, do one of the following:
• Press any key.
• Open the LCD cover.
• Turn on the power button.
Also, in either of the following events, the computer automatically returns from sleep mode and resumes operation:
• The ring indicator (RI) is signaled by a serial device or a PC Card device.
• The time set on the resume timer elapses.
Note: The computer does not accept any input immediately after it enters sleep mode. Wait a few seconds before taking any action to reenter operation mode.
Power, and then click Sleep.

Hibernation mode

In hibernation mode, the following occurs:
• The system status, RAM, VRAM, and setup data are stored on the hard disk drive or solid-state drive.
• The system is powered off.
Note: If the computer enters the hibernation mode while it is connected to the dock, do not disconnect it before resuming normal operation. If you do disconnect it and then try to resume normal operation, you will get an error message, and you will have to restart the system.
If you have defined one of the following actions as the event that causes the system to go into hibernation mode, perform that action.
• Closing the lid.
• Pressing the power button.
Also, the computer goes into hibernation mode automatically after a period of inactivity specified in power plan settings.
When the power is turned on, the computer returns from hibernation mode and resumes operation. The hibernation file in the boot record on the hard disk drive or solid-state drive is read, and system status is restored from the hard disk drive or solid-state drive.

Symptom-to-FRU index

This section contains following information:
• “Numeric error codes” on page 36
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• “Error messages” on page 37
• “Beep symptoms” on page 38
• “No-beep symptoms” on page 39
• “LCD-related symptoms” on page 40
• “Intermittent problems” on page 40
• “Undetermined problems” on page 40
The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most likely cause is listed first, in boldface type.
Note: Do the FRU replacement or other actions in the sequence shown in the column headed “FRU or action, in sequence.” If replacing a FRU does not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next.
A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be any number.
If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to “Intermittent problems” on page 40.
Note: For a device not supported by diagnostic codes in the ThinkPad notebooks, see the manual for that device.

Numeric error codes

Table 2. Numeric error codes
Symptom or error (beeps, if any)
0177
Bad SVP data, stop POST task—The checksum of the supervisor password in the EEPROM is not correct.
0183
Bad CRC of Security Settings in EFI Variable. Enter the ThinkPad Setup program. – The checksum of the Security settings in the EFI Variable is not correct.
0187
EAIA data access error - The access to EEPROM is failed.
0188
Invalid RFID Serialization Information Area.
0189
Invalid RFID configuration information area - The EEPROM checksum is not correct.
0190
Critical low-battery error
0191
System Security - Invalid Remote Change requested.
FRU or action, in sequence
Replace the system board.
1. Run the ThinkPad Setup program. The settings will be corrected automatically. Then save the current settings by pressing Fn+F10.
2. Replace the system board.
Replace the system board.
Replace the system board.
Replace the system board.
1. Charge the battery pack.
2. Replace the battery pack.
1. Run the ThinkPad Setup program, and then save
current setting by pressing Fn+F10.
2. Replace the system board.
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Table 2. Numeric error codes (continued)
Symptom or error (beeps, if any)
0199
System Security - Security password retry count exceeded.
0251
System CMOS checksum bad - Default configuration used.
0253
EFI Variable Block Data was destroyed.
0271
Real-Time Clock Error. Check Date and Time settings.
1802
Unauthorized network card is plugged in - Turn off and remove the network card.
1820
More than one external fingerprint reader is attached. Power off and remove all but the reader that you set up within your main operating system.
2000
ThinkVantage Active Protection sensor diagnostics failed.
FRU or action, in sequence
1. Run the ThinkPad Setup program. The retry count
will be reset. Then save the current settings by pressing Fn+F10.
2. Replace the system board.
1. Charge the coin-cell battery for more than 8 hours
by connecting the ac power adapter.
2. Replace the coin-cell battery and run the ThinkPad
Setup program to reset the time and date.
1. Run ThinkPad Setup to reconfigure the settings.
2. Replace the system board.
1. Run ThinkPad Setup to reset the time and date
2. Replace the coin-cell battery and run the ThinkPad
Setup program to reset the time and date.
1. Remove the network card.
2. Replace the system board.
Remove all but the reader that you set up for the authentication
Have the computer serviced.
2100
Detection error on HDD0 (Main HDD)
2110
Read error on HDD0 (Main HDD)
2200
Machine Type and Serial Number are invalid.
2201
Machine UUID is invalid
1. Reseat the hard disk drive.
2. Replace the main hard disk drive.
3. Replace the system board.
1. Reseat the hard disk drive.
2. Replace the main hard disk drive.
3. Replace the system board.
Replace the system board.
Replace the system board.

Error messages

Table 3. Error messages
Symptom or error (beeps, if any)
Fan error. (four short beeps, one long beep)
Thermal sensing error. Replace the system board.
FRU or action, in sequence
1. Replace the fan.
2. Apply thermal grease.
3. Replace the system board.
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Table 3. Error messages (continued)
Symptom or error (beeps, if any)
The battery installed is not supported by this system and will not charge. Please replace the battery with the correct Lenovo battery for this system. Press the ESC key to continue.
This system does not support batteries that are not genuine Lenovo-made or authorized. The system will continue to boot, but may not charge unauthorized batteries.
Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use.
FRU or action, in sequence
Replace the battery.
Replace the battery.

Beep symptoms

Lenovo SmartBeep technology enables you to decode beep errors with your smartphone when a black screen occurs with beeps from your computer. To decode the beep error with Lenovo SmartBeep technology, do the following:
1. Go to
http://www.support.lenovo.com/smartbeep or scan the following QR Code.
2. Download the proper diagnostic app and install it on your smartphone.
3. Run the diagnostic app and place the smartphone near the computer.
4. Press the Fn key on your computer to emit the beep again. The diagnostic app decodes the beep error and shows possible solutions on the smartphone.
The following section describes some beep errors and the corresponding solutions.
Note: Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or product documentation. Only use a Lenovo-authorized service provider to repair your product.
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Error codes Solutions
0001: Reset error (platform reset not de-asserted)
1. Remove all power resources (the ac power adapter, removable battery, and coin-cell battery). If your computer has a built-in battery, reset the computer by inserting a straightened paper clip into the emergency-reset hole. Wait for one minute. Then reconnect all power resources.
2. Replace the system board (service provider only).
0002: Internal bus error
0281: General embedded controller error
0282: Memory module error
0283: PCI resource error
0284: TCG-compliant functionality-related error (might be the BIOS code validation failure)
0285: TCG-compliant functionality-related error (might be the TPM initialization failure)
0286: Integrated graphics error
0287: Discrete graphics error
0288: Computer display error
Replace the system board (service provider only).
Replace the system board (service provider only).
1. Reinstall or replace the memory module.
2. Replace the system board (service provider only).
1. Remove PCIe devices (the M.2 card, PCIe card, and so on) (service provider only).
2. Replace the system board (service provider only).
Replace the system board (service provider only).
Replace the system board (service provider only).
Replace the system board (service provider only).
1. Reinstall or replace the discrete graphics card (service provider only).
2. Replace the system board (service provider only).
1. Reconnect the display cable on both the system board side and the computer display side (service provider only).
2. Replace the system board (service provider only).

No-beep symptoms

Table 4. No-beep symptoms
Symptom or error
No beep, power-on indicator on, LCD blank, and no POST.
No beep, power-on indicator on, and LCD blank during POST.
The power-on password prompt appears. A power-on password or a supervisor password is set.
The hard-disk password prompt appears. A hard-disk password is set. Type the password and
FRU or action, in sequence
1. Ensure that every connector is connected tightly and correctly.
2. Reseat memory module.
3. Replace the system board.
1. Reseat memory module..
2. Replace the system board.
Type the password and press Enter.
press Enter.
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LCD-related symptoms

Important: The TFT LCD for the notebook computer contains many thin-film transistors (TFTs). The
presence of a small number of dots that are missing, discolored, or always lighted is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns.
If the LCD you are servicing has two or less visible defective pixels, it should not be considered faulty. However, if the LCD has three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced.
Notes:
• This policy applies to all ThinkPad Notebooks purchased on 1 January, 2008 or later.
• Lenovo will not provide warranty replacement if the LCD is within specifications because we cannot guarantee that any replacement LCD will have zero pixel defects.
• One pixel consists of R, G, B sub-pixels.
Table 5. LCD-related symptoms
Symptom or error FRU or action, in sequence
No beep, power-on indicator on, and a blank LCD during POST.
• LCD backlight not working.
• LCD too dark.
• LCD brightness cannot be adjusted.
• LCD contrast cannot be adjusted.
• LCD screen unreadable.
• Characters missing pixels.
• Screen abnormal.
• Wrong color displayed.
Horizontal or vertical lines displayed on LCD. Replace the LCD assembly.
Replace the system board.
1. Reseat the LCD connectors.
2. Replace the LCD assembly.
3. Replace the system board.
1. See important note for “LCD-related symptoms.”
2. Reseat all LCD connectors.
3. Replace the LCD assembly.
4. Replace the system board.

Intermittent problems

Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a problem recurs.
When analyzing an intermittent problem, do the following:
1. Run the diagnostic test for the system board in loop mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist.

Undetermined problems

If the diagnostic tests did not identify the device that has failed, if wrong devices are installed, or if the system simply is not operating, follow these procedures to isolate the failing FRU (do not isolate FRUs that have no defects).
Verify that all attached devices are supported by the computer.
Verify that the power supply being used at the time of the failure is operating correctly. (See “Power system checkout” on page 28)
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1. Turn off the computer.
2. Visually check each FRU for damage. Replace any damaged FRU.
3. Remove or disconnect all of the following devices: a. Non-ThinkPad devices b. Devices attached to the docking station or the port replicator c. Printer, mouse, and other external devices d. Battery pack e. Hard disk drive or solid-state drive f. Memory module g. Optical disk or diskette in the internal drive
4. Turn on the computer.
5. Determine whether the problem has been solved.
6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.
7. If the problem remains, replace the following FRUs one at a time (do not replace a nondefective FRU): a. System board b. LCD assembly
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Chapter 5. Status indicators

NumL
o
ck
This chapter introduces the status indicators of the computer.
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Table 6. Status indicators
Indicator Description
1 Speaker-mute indicator On: The speakers are muted.
2 Microphone-mute
On: The microphones are muted.
indicator
3 Camera-status indicator On: The camera is in use.
4 and 6 System-status
Blinks for three times: The computer is initially connected to power.
indicators
On: The computer is on (in normal mode).
Off: The computer is off or in hibernation mode.
Blinks slowly: The computer is in sleep mode.
Blinks fast: The computer is entering sleep or hibernation mode.
5 Fn Lock indicator
This indicator shows the status of Fn Lock function. For more information, see Chapter 6 “Function keys” on page 45.
7 ac power-status
indicator
The ac power-status indicator shows the ac power charging status of the computer.
Green: Connected to ac power (charging 80%–100%)
Amber: Connected to ac power (charging 1%–80%)
Off: Not connected to ac power (no charging)
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Chapter 6. Function keys

F8
F9
F10
F11
The following table describes the functions of function keys and key combinations.
Table 7. Function keys
Special key
+
Description
You can configure the Fn key and function keys in the Keyboard Properties window by doing the following:
1. Go to Control Panel. Change the view of Control Panel from Category to Large icons or Small icons.
2. Click Keyboard. In the Keyboard Properties window, click the Fn and function keys tab.
3. Select the options of your preference.
Press Fn+Esc to enable or disable the Fn Lock function.
When the Fn Lock function is disabled: The Fn Lock indicator is off. To initiate the special function printed as an icon on each function key, press the corresponding function key directly. To input F1- F12, press the Fn key and the corresponding function key.
When the Fn Lock function is enabled: The Fn Lock indicator turns on. To input F1- F12, press the corresponding function key directly. To initiate the special function printed as an icon on each function key, press the Fn key and the corresponding function key.
Mute or unmute the speakers.
If you mute the sound and turn off your computer, the sound will remain muted when you turn on your computer again. To turn on the sound, press F1, F2 or F3.
Decrease the speaker volume.
Increase the speaker volume.
Mute or unmute the microphones.
Darken the computer display.
Brighten the computer display.
Manage external displays.
Enable or disable the built-in wireless features.
Open the Settings window.
Enable or disable the built-in Bluetooth features.
Open a keyboard setting page.
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Table 7. Function keys (continued)
F12
Special key
Description
Invoke the function defined by yourself. If no function is defined, press this key to open the Cortana personal assistant. To define or change the function, do the following:
1. Open the Lenovo Settings program.
2. Click the input icon
.
3. Locate the KEYBOARD: USER-DEFINED KEY section and follow the instructions on the screen to complete the setting.
On this Input page, you can also define different functions for the key combinations with F12, such as Shift+F12, Alt+F12, or Ctrl+F12.
Open the Snipping Tool program.
+
Put the computer into sleep mode.
+
Open the calculator.
+
Fn+Spacebar If your computer supports keyboard backlight, press Fn+Spacebar to switch between the
different keyboard backlight status (off, low, or high).
Fn+B This key combination has the same function as the Break key on a conventional external
keyboard.
Fn+K
This key combination has the same function as the ScrLK or Scroll Lock key on a conventional external keyboard.
Fn+P This key combination has the same function as the Pause key on a conventional external
keyboard.
Fn+S This key combination has the same function as the SysRq key on a conventional external
keyboard.
Fn+Q Press Fn+Q to switch between the performance mode and quiet mode. In the quiet mode,
your computer works with lower noise, but the performance is slightly limited.
Fn+4 Press Fn+4 to put the computer into sleep mode. To wake up the computer, press any key or
the power button.
46 Hardware Maintenance Manual
Page 53

Chapter 7. Locations

Nu
mLock
SD
This chapter introduces the locations of the hardware components on your computer.

Locating computer controls, connectors, and indicators

This topic introduces the locations of the computer controls, connectors, and indicators.

Front view

1 Microphones
3 Power button 4 Numeric keypad
5 Security-lock slot
7 Media-card slot
9 System-status indicator
11 TrackPoint
13 Speakers
1
: For the description of the system-status indicator, see Chapter 5 “Status indicators” on page 43.
© Copyright Lenovo 2017 47
®
buttons 12 TrackPoint cap
1
2 Camera
6 Fan louvers
8 Universal Serial Bus (USB) 3.0 connectors
10 Trackpad
Page 54

Rear view

1 ac power connector
3 High-Definition Multimedia Interface (HDMI)
2 Fan louvers
4 Ethernet connector
connector
5 Always On USB 3.0 connector
7 System-status indicator
1
: For the description of the system-status indicator, see Chapter 5 “Status indicators” on page 43.
1
6 Audio connector

Bottom view

1 Emergency-reset hole 2 M.2 solid-state drive
3 Built-in battery 4 Base cover assembly
5 Internal storage drive 6 Memory-upgrade slots
48 Hardware Maintenance Manual
Page 55

Locating FRUs and CRUs

This topic introduces the following service parts:
• “Major FRUs and CRUs” on page 50
• “LCD FRUs” on page 52
Notes:
• Each FRU is available for all types or models, unless otherwise specified.
CRU statement for customers: You can resolve some problems with your product with a replacement part you can install yourself, called a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as self-service CRUs and others are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For optional-service
CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU
information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at follow the on-screen instructions to find the manual for your product. You might be required to return the defective CRU. When return is required: (1) return instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.
ThinkPad computers contain the following types of CRUs: – Self-service CRUs: These CRUs unplug or are held by no more than two screws. Examples of these types of
CRUs include the ac power adapter, power cord, battery, and hard disk drive or solid-state drive. Other self­service CRUs depending on product design might include the memory module, wireless card, keyboard, palm rest, and ThinkPad trackpad.
Optional-service CRUs: These CRUs are isolated parts within the computer that are concealed by an access
panel that is typically secured by more than two screws. Once the access panel is removed, the specific CRU is visible.
http://www.lenovo.com/support. Click User Guides & Manuals and then
Chapter 7. Locations 49
Page 56

Major FRUs and CRUs

a
b
c
e
d
14a
14b
Table 8. Major FRUs and CRUs
No. FRU description Self-service CRU Optional-service
CRU
1
2
3
50 Hardware Maintenance Manual
LCD unit No No
Keyboard No Yes
Keyboard bezel assembly No No
Page 57
Table 8. Major FRUs and CRUs (continued)
No. FRU description
Self-service CRU Optional-service
CRU
4
Power button card and power button card FFC
No No
cable
5
6
7
8
9
10
11
12
13
14a
14b Solid-state drive assembly or dummy assembly Yes No
15
16
17
18
19
20
PCH bracket
Wireless LAN card No No
M.2 solid-state drive bracket Yes No
M.2 solid-state drive* Yes No
Ethernet connector card bracket No No
Thermal module No No
Built-in battery No No
Base cover assembly No No
Bottom door Yes No
Hard disk drive assembly or dummy assembly Yes No
ThinkPad LED card with cable No No
Media-card-reader card wire cable No No
Media-card-reader card FPC cable No No
Media-card-reader card No No
Media-card-reader-card bracket No No
Coin-cell battery
No No
No No
21
22
23
24
25
26
27
a
b
c
d
e
Memory module Yes No
dc-in connector LED card cable No No
System board
No No
dc-in LED card No No
dc-in connector with cable No No
Speaker assembly
No No
TrackPoint cap Yes No
Lenovo factory recovery USB key*
No No
Lenovo recovery disc set* No No
Screw kit No No
Power cord Yes No
ac power adapter Yes No
* Available on some models
Note: The Lenovo factory recovery USB key and the Lenovo recovery disc set are used to restore the Microsoft Windows operating system. They might not come with the computer, and a user might order them from http://www.lenovo.com/lenovorecovery, though additional shipping and handling fees might apply.
Chapter 7. Locations 51
Page 58

LCD FRUs

Table 9. LCD FRUs
No. FRU description
1
2
3
4
5
LCD bezel
LCD panel
Camera/microphone module
LCD cover kit No No
Wireless-LAN antenna assembly No No
52 Hardware Maintenance Manual
Self-service CRU Optional-service CRU
No No
No No
No No
Page 59
Table 9. LCD FRUs (continued)
No. FRU description
6
7
8
Camera/microphone cable
LCD cable
LCD hinges
Self-service CRU Optional-service CRU
No No
No No
No No

Connector and cable guide

This topic provides information to help Lenovo authorized service technicians identify connectors and cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major FRUs and CRUs” on page 50 and “LCD FRUs” on page 52.
Note: Depending on your computer model, some connectors or cables might not be available.
System board connectors and cables
Chapter 7. Locations 53
Page 60
Table 10. System board
Ite-
Connector (location)
Internal cable required
Cable connection
m
1
LCD connector (internal) LCD cable Connect one end to the LCD panel and the other end to
this connector.
2
Connector of the camera/microphone
Cable of camera/ microphone combo card
Connect one end to the card and the other end to this connector.
combo card
3
Wireless-LAN card slot
No Insert the wireless-LAN card into this slot.
(internal)
4
dc-in connector (internal)
No
Connect the dc-in connector cable that comes with the ac power connector.
5
dc-in LED card
dc-in LED cable Connect the dc-in LED card to this connector.
connector (internal)
6
Thermal fan connector (internal)
7
HDMI connector (external)
8
Ethernet connector
No
No
No
The thermal fan assembly comes with cable. Connect the cable to this connector.
Connect a compatible digital audio device or video monitor to this connector.
Connect an Ethernet cable to this connector.
(external)
9
USB 3.0 connector
No
Connect USB-compatible devices to this connector.
(external)
10
Audio connector (external)
11
M.2 solid-state drive (internal)
12
Built-in battery connector (internal)
13
Memory module slot
14
(internal)
15
Hard disk drive or solid­state drive connector (internal)
16
Media-card-reader card connector (internal)
17
Thermal fan connector (internal)
18
Coin-cell battery connector (internal)
19
Media-card-reader card connector (internal)
20
Power button card connector (internal)
No
Connect headphones or a headset with 3.5-mm (0.14­inch) 4-pole plug to this connector.
No Insert the M.2 solid-state drive into this slot.
No The built-in battery cable comes with the built-in
battery. Connect the cable to this connector.
No Insert the memory module into this slot.
Hard disk drive cable
Connect one end to the hard disk drive and the other end to this connector.
Media-card-reader card FPC cable
Connect one end to the media-card-reader card and the other end to this connector.
No The thermal fan assembly comes with cable. Connect
the cable to this connector.
No The coin-cell battery comes with cable. Connect the
cable to this connector.
Media-card-reader card wire cable
Connect one end to the media-card-reader card and the other end to this connector.
Power button card cable Connect one end to the power button card and the
other end to this connector.
21
Keyboard connectors
22
(internal)
54 Hardware Maintenance Manual
No The keyboard assembly comes with two cables.
Connect the cables to the connectors.
Page 61
Table 10. System board (continued)
Ite-
Connector (location)
Internal cable required
m
23
Trackpad connector
Trackpad FFC cable The keyboard bezel comes with trackpad FFC cable.
(internal)
24
Speaker assembly
No
connector (internal)
ac power connector and cable
Table 11. ac power connector
Ite-
Connector (location) Internal cable required Cable connection
m
1
dc-in connector (internal)
ac power connector
2
No
No
(external)
dc-in LED card connector and cable
Cable connection
Connect the cable to this connector.
The speaker assembly comes with cable. Connect the cable to this connector.
The dc-in connector comes with the cable. Connect the cable to the system board.
Connect the ac power adapter.
Table 12. dc-in LED card
Ite-
Connector (location)
Internal cable required
m
1
dc-in LED card
dc-in LED cable Connect one end to the dc-in LED card and the other
connector (internal)
Keyboard bezel assembly connectors and cables
Table 13. Keyboard bezel assembly
Ite-
Connector (location)
m
1
Trackpad connector (internal)
Internal cable required
Clickpad FFC cable Connect one end to the trackpad connector and the
Cable connection
end to the system board.
Cable connection
other end to the system board.
Chapter 7. Locations 55
Page 62
Wireless LAN card connectors and cables
Table 14. Wireless LAN card
Ite-
Connector (location)
Internal cable required
m
1
Wireless-LAN antenna
Wireless-LAN antenna kit
connector (internal)
2
Wireless-LAN antenna
Wireless-LAN antenna kit
connector (internal)
Media-card-reader card connectors and cable
Table 15. Media-card-reader card
Cable connection
Connect one end of the wireless-LAN gray antenna to the A-cover and the other end to this connector.
Connect one end of the wireless-LAN black antenna to the A-cover and the other end to this connector.
Ite-
Connector (location)
m
1
Media-card-reader card connector (internal)
2
Media-card-reader card connector (internal)
3
ThinkPad logo LED card connector (internal)
4
USB 3.0 connector (external)
56 Hardware Maintenance Manual
Internal cable required
Media-card-reader card FPC cable
Media-card-reader card wire cable
ThinkPad logo LED card with cable
No
Cable connection
Connect one end to this connector and the other end to the system board.
Connect one end to this connector and the other end to the system board.
Connect the cable to this connector.
Connect USB-compatible devices to this connector.
Page 63
Table 15. Media-card-reader card (continued)
Ite-
Connector (location)
m
5
USB 3.0 connector (external)
6
Media-card slot (external)
Power button card
Table 16. dc-in LED card
Ite-
Connector (location)
m
1
Power button card connector (internal)
Internal cable required
Cable connection
No Connect USB-compatible devices to this connector.
No Insert a media card into this slot to read the data on
the card.
Internal cable required
Power button card FFC able
Cable connection
Connect one end to the power button card and the other end to the system board.
ThinkPad LED card connector and cable
Table 17. ThinkPad LED card
Ite-
Connector (location)
m
1
ThinkPad LED card connector
Internal cable required
No The ThinkPad LED card comes with the cable.
Cable connection
Connect the cable to the corresponding media card reader connector.
Chapter 7. Locations 57
Page 64
LCD panel connector and cable
Table 18. LCD panel
Ite-
Connector (location) Internal cable required Cable connection
m
1
LCD panel connector (internal)
LCD cable Connect one end to this connector and the other end
to the system board.
Camera/microphone combo card connector and cable
Table 19. Camera/microphone combo card
Ite-
Connector (location) Internal cable required Cable connection
m
1
Camera/microphone card connector (internal)
Camera/microphone combo card cable
Connect one end to this connector and the other end to the system board.

Looking up FRU information

For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to:
http://www.lenovo.com/serviceparts-lookup
58 Hardware Maintenance Manual
Page 65

Chapter 8. FRU replacement notices

This chapter presents notices related to removing and replacing parts. Read this chapter carefully before replacing any FRU.
CRU statement for customers:
You can resolve some problems with your product with a replacement part you can install yourself, called a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as self-service CRUs and others are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For optional-
service CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the CRU, Lenovo will ship
the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at Click User Guides & Manuals and then follow the on-screen instructions to find the manual for your product. You might be required to return the defective CRU. When return is required: (1) return instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.

Screw notices

Loose screws can cause a reliability problem. In the ThinkPad notebook computer, this problem is addressed with special nylon-coated screws that have the following characteristics:
http://www.lenovo.com/support.
• They maintain tight connections.
• They do not easily come loose, even with shock or vibration.
• They are harder to tighten.
Do the following when you service the computer:
• Keep the screw kit in your tool bag. For the part number of the screw kit, go to:
http://www.lenovo.com/serviceparts-lookup
• It is recommended to use new screws.
• It is recommended to use each screw only once.
Tighten screws as follows:
Plastic to plastic
Turn an additional angle of 90 degrees after the screw head touches the surface of the plastic part.
Logic card to plastic
Turn an additional angle of 180 degrees after the screw head touches the surface of the logic card.
© Copyright Lenovo 2017 59
Page 66
Notes:
• Ensure that you use the correct screw. It is recommended to use new screws for replacements. If you have a torque screwdriver, tighten all screws firmly to the torque specified in the screw information table for each step.
• Ensure torque screwdrivers are calibrated correctly following country specifications.

Retaining serial numbers

This topic provides instructions on the following:
• “Restoring the serial number of the system unit” on page 60
• “Retaining the UUID” on page 61

Restoring the serial number of the system unit

When the computer was manufactured, the EEPROM on the system board was loaded with the serial numbers of the system and all major components. These numbers need to remain the same throughout the life of the computer.
If you replace the system board, you must restore the serial number of the system unit to its original value.
The serial number of the system unit is written on the label attached to the bottom of the computer.
If you cannot find the serial number of the system unit on the bottom of the computer, try the following method to get the number:
Note: Before you perform the operation, ensure that the UEFI/Legacy setting within the Startup menu in the ThinkPad Setup program is set to UEFI Only.
1. Connect a USB memory key to the computer.
2. Go to
3. Restart the computer.
4. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is
5. Type 1 under Enter the action desired, then press Enter. The ThinkPad Serial Number Update Utility for
6. Type 2 under Enter the action desired, then press Enter. The serial number of each device in your
7. Record the serial number of the system unit.
After you replace the system board, do the following to restore the serial number of the system unit:
1. Connect the Maintenance key to the computer.
60
http://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a
Maintenance key.
Note: Only an authorized Lenovo service technician can access the above Web site.
displayed.
Asset ID screen is displayed.
computer is displayed; the serial number of the system unit is listed as follow: 20- Serial number
Hardware Maintenance Manual
Page 67
2. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.
3. Type 1 under Enter the action desired, then press Enter. The ThinkPad Serial Number Update Utility for Asset ID screen is displayed.
4. Type 1 under Enter the action desired, then press Enter. Then follow the instructions on the screen to restore the serial number of the system unit.

Retaining the UUID

The Universally Unique Identifier (UUID) is a 128-bit number uniquely assigned to your computer at production and stored in the EEPROM of your system board.
The algorithm that generates the number is designed to provide unique IDs until the year A.D. 3400. No two computers in the world have the same number.
When you replace the system board, perform the following steps to create a new UUID for the system board if the system board does not have a UUID:
Note: Before you perform the operation, ensure that the UEFI/Legacy setting within the Startup menu in the ThinkPad Setup program is set to UEFI Only.
1. Connect a USB memory key to the computer.
2. Go to
3. Restart the computer.
4. When the logo screen is displayed, press Esc. The ThinkPad Config Information Update Utility interface
5. Type 2 under Enter the action desired, then press Enter. The Auto UUID generation utility interface is
6. Type y under Change UUID. OK? [Y/N], then press Enter. A new UUID is created and written. If a valid
http://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a
Maintenance key.
Note: Only an authorized Lenovo service technician can access the above Web site.
is displayed.
displayed.
UUID already exists, it is not overwritten.

Reading or writing the ECA information

Information on Engineering Change Announcements (ECA) is stored in the EEPROM of the system board. The electronic storage of this information simplifies the procedure to check if the ECA has been previously applied to a machine. The machine does not need to be disassembled to check for the ECA application.
To check what ECAs have been previously applied to the machine, use the ECA Information Read/Write function on the LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key.
1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
2. From the main menu, select 6. Set ECA Information.
3. To read the ECA information, select 2. Read ECA/rework number from EEPROM and follow the instructions on the screen. To read the box build date, select 5. Read box build date from EEPROM, and follow the instruction on the screen.
After an ECA has been applied to the machine, the EEPROM must be updated to reflect the ECA's application. Use the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key to update the EEPROM.
Note: Only the ECA number is stored in the EEPROM. The machine type of the ECA is assumed to be the same as the machine type of the machine that had the ECA applied to it.
Chapter 8. FRU replacement notices 61
Page 68
1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.
2. From the main menu, select 6. Set ECA Information.
3. To write the ECA information, select 1. Write ECA/rework number from EEPROM, and follow the instructions on the screen. To write the box build date, select 4. Write box build date from EEPROM, and follow the instruction on the screen.
If the system board is being replaced, try to read the ECA information from the old system board and transfer the information to the new system. If the system board is inoperable, this will not be possible.
62
Hardware Maintenance Manual
Page 69

Chapter 9. Removing or replacing a FRU

This chapter provides instructions on how to remove or replace a FRU.
CRU statement for customers:
You can resolve some problems with your product with a replacement part you can install yourself, called a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as self-service CRUs and others are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For optional-
service CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the CRU, Lenovo will ship
the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at Click User Guides & Manuals and then follow the on-screen instructions to find the manual for your product. You might be required to return the defective CRU. When return is required: (1) return instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.

General guidelines

When removing or replacing a FRU, be sure to observe the following general guidelines:
1. Do not try to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts.
2. Before replacing any FRU, review Chapter 8 “FRU replacement notices” on page 59.
3. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Any such FRUs are listed at the beginning of each FRU replacement procedure. Remove them in the order in which they are listed.
4. Follow the correct sequence in the steps for removing a FRU, as given in the drawings by the numbers in square callouts.
5. When turning a screw, turn it in the direction as given by the arrow in the drawing.
6. When removing a FRU, move it in the direction as given by the arrow in the drawing.
7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to replacement. For information about connecting and arranging internal cables, see Chapter 7 “Locations” on page 47.
8. When replacing a FRU, use the correct screws as shown in the replacement procedure.
http://www.lenovo.com/support.
DANGER
Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, disable the built-in battery, and then disconnect any interconnecting cables.
Attention: After replacing a FRU, do not turn on the computer until you have made sure that all screws,
springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.
© Copyright Lenovo 2017 63
Page 70
Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge (ESD). Before touching it, establish personal grounding by touching a ground point with one hand or by using an electrostatic discharge strap.

Before servicing the computer

Carefully read this topic before servicing the computer.

Disabling the built-in battery

Before replacing any FRU, ensure that you have disabled the built-in battery.
For Windows 10, disable Fast Startup before disabling the built-in battery.
To disable Fast Startup for Windows 10, do the following:
1. From the desktop, type Power in the search box on the taskbar, and select Power Options.
2. Click Change what the power buttons do on the left pane.
3. Click Change settings that are currently unavailable at the top.
4. If prompted by User Account Control (UAC), click Yes.
5. Clear the Turn on fast startup check box, and then click Save changes.
To disable the build-in battery, do the following:
1. Turn off your computer and disconnect the ac power adapter and all cables from the computer.
2. Turn on your computer. Press F1 to enter ThinkPad Setup when the ThinkPad logo is displayed.
3. Select Config Power. The Power submenu is displayed.
4. Select Disable built-in battery.
5. Click Yes in the Setup Warning window. Then the computer turns off automatically. Wait three to five minutes to let the computer cool.

1010 Bottom cover

Removal steps of the bottom cover
Loosen the screws
64 Hardware Maintenance Manual
1 and then remove the large bottom cover 2 .
Page 71

1020 Battery

For access, remove this FRU:
• “1010 Bottom cover” on page 64
Important notice for replacing a battery pack Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no
warranties for failures or damage arising out of their use. Lenovo provides a diagnostic program to do an automatic battery diagnostic test that determines if the battery pack is defective. A battery pack FRU should not be replaced unless this diagnostic test shows that the battery is defective. The only exception to this is if the battery pack is physically damaged or a customer is reporting a possible safety issue.
If no diagnostic program is installed in the computer, the customer should download this program and install the program to diagnose the battery, before a non-physically damaged battery pack is replaced. Note that the replacement of a physically damaged battery is not covered by the warranty.
Removal steps of the battery
DANGER
Use only the authorized battery specified for your computer. Any other battery could ignite or explode.
Step Screw (quantity) Color Torque
2
M2 × 5 mm, flat-head, nylon-coated (5)
Black 0.196 Nm
(2.0 kgf-cm)

1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable

For access, remove this FRU:
• “1010 Bottom cover” on page 64
Attention:
• Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data.
Chapter 9. Removing or replacing a FRU 65
Page 72
• Before removing the drive, have the user make a backup copy of all the information on it if possible.
• Never remove the drive while the computer is operating or is in suspend mode.
Removal steps of the hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable
Step Screw (quantity) Color Torque
2
M2 × 5 mm, flat-head, nylon-coated (1)
Black 0.196 Nm
(2.0 kgf-cm)
66 Hardware Maintenance Manual
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When installing: Ensure that the cable is attached to the hard disk drive assembly or solid-state drive
assembly firmly.

1040 M.2 solid-state drive and M.2 solid-state drive bracket

For access, remove the FRU as following:
• “1010 Bottom cover” on page 64
Attention:
• Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data.
• Before removing the drive, have the user make a backup copy of all the information on it if possible.
• Never remove the drive while the computer is operating or is in suspend mode.
Removal steps of the M.2 solid-state drive assembly and the M.2 solid-state drive bracket
Chapter 9. Removing or replacing a FRU 67
Page 74
When installing: Ensure that the M.2 solid-state drive bracket is attached to the M.2 solid-state drive firmly.

1050 Keyboard

For access, remove this FRU:
• “1010 Bottom cover” on page 64
Removal steps of the keyboard
Step Screw (quantity) Color Torque
1
M2 × 6 mm, flat-head, nylon-coated (3) Black 0.196 Nm
68 Hardware Maintenance Manual
(2 kgf-cm)
Page 75
N
umL
ock
Chapter 9. Removing or replacing a FRU 69
Page 76
When installing: Ensure that the connector is attached firmly.

1060 Base cover assembly

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
Removal steps of the base cover assembly
70 Hardware Maintenance Manual
Page 77
Step Screw (quantity) Color Torque
1
M2 × 6 mm, flat-head, nylon-coated (4)
Black 0.196 Nm
(2.0 kgf-cm)
2
M2 × 4 mm, flat-head, nylon-coated (2) Black 0.196 Nm
(2.0 kgf-cm)
The following illustration shows the location of each label for Windows 10 based computer models.
When you replace the base cover, apply the FCC label
1 and the Serial number label 8 . If the removed cover
has two FCC labels, apply both to the new base cover.
For the labels listed in the following table, peel them off from the old base cover, and adhere them to the new base cover.
2 Information label under BAT 3 Wireless LBL for special bid
4 System silk print label 5 MTM S/N Label
6 China model label/CECP label 7 GEO label
8 KC safety label
10 ICASA system label
12 Indonesia rating label 13 IMEI label
14 Indonesia postel label
9 Asset tag
11 Win 10 label
15 Malaysian SLP label

1070 Memory module

Removal steps of the memory modules
For models with one memory module installed:
To remove the memory module, remove these FRUs in order:
Chapter 9. Removing or replacing a FRU 71
Page 78
1. “1010 Bottom cover” on page 64.
2. “1020 Battery” on page 65.
3. “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65.
4. “1050 Keyboard” on page 68.
5. “1060 Base cover assembly” on page 70.
6. Open the latches on both sides of the memory slot at the same time module
2 .
1 and then remove the memory
For models with two memory modules installed:
To remove the memory modules, do the following:
1. Remove the bottom cover, see “1010 Bottom cover” on page 64.
2. Open the latches on both sides of the memory slot at the same time module
2 .
1 and then remove the memory
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3. Remove the built-in battery, see “1020 Battery” on page 65.
4. Remove the hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable, see “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65.
5. Remove the keyboard, see “1050 Keyboard” on page 68.
6. Remove the base cover assembly, see “1060 Base cover assembly” on page 70.
7. Open the latches on both sides of the memory slot at the same time module
2 .
1 and then remove the memory
When installing:
Insert the notched end of the memory module into the slot at an angle of about 20 degrees. Press the memory module firmly, and pivot it downwards until it snaps into place. Ensure that the memory module is firmly installed in the slot and does not move easily.

1080 Wireless LAN card

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
• “1070 Memory module” on page 71
Chapter 9. Removing or replacing a FRU 73
Page 80
Removal steps of the wireless LAN card
Step Screw (quantity) Color
2
M2 × 3 mm, flat-head, nylon-coated (1)
Black 0.196 Nm
Torque
(2 kgf-cm)
When installing: Plug the gray cable into the main connector, and the black cable into the auxiliary connector on the card.

1090 Coin-cell battery and Ethernet bracket

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
• “1070 Memory module” on page 71
Removal steps of the coin-cell battery
DANGER
Use only the authorized battery specified for your computer. Any other battery could ignite or explode.
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When installing: Ensure that the connector is attached firmly.
Removal steps of the Ethernet bracket

1100 Media-card-reader card, the media-card-reader card bracket, and the media-card-reader card cable

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
Chapter 9. Removing or replacing a FRU 75
Page 82
Removal steps of the media-card-reader card, the media-card-reader card bracket, and the media-
11
card-reader card cable
Step Screw (quantity) Color Torque
5
M2 × 4 mm, flat-head, nylon-coated (2)
Black 0.196 Nm
(2 kgf-cm)
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When installing: Ensure that the connector is attached firmly to the system board.

1110 ThinkPad LED card

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
Chapter 9. Removing or replacing a FRU 77
Page 84
Removal steps of the ThinkPad LED card
78 Hardware Maintenance Manual
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When installing: Ensure that the connector is attached firmly to the system board.

1120 Thermal fan and the PCH bracket

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
Attention: The following components soldered on the top side of the system board are extremely sensitive. When you service the system board, avoid any kind of rough handling.
Removal steps of the thermal fan
Chapter 9. Removing or replacing a FRU 79
Page 86
Step Screw (quantity) Color Torque
4c
4d
4b
4a
4g
4f
4e
3
M2 × 4 mm, flat-head, nylon-coated (1)
Black 0.196 Nm
(2 kgf-cm)
When you install the thermal fan assembly:
• Do not touch the thermal grease.
• Do not press, touch, or rotate the fan impeller.
• Do not touch the fan inlet hole.
• Do not twist or pull the cable of the thermal fan assembly.
• Do not apply pressure on the top and bottom covers of the thermal fan assembly.
• Do not press the heat pipe. Hold both sides of the heat pipe if you need to take the thermal fan assembly.
• Do not shake or drop the thermal fan assembly.
• Ensure that the fan connector is attached firmly.
• Ensure that the base cover assembly is attached firmly; otherwise, battery connection may fail.
• Always wear fingerstalls when handling the thermal fan assembly. Do not touch or hold any part of the thermal fan assembly with bare fingers.
• Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked
a as shown in the following illustrations. Either too much or too less
application of grease can cause a thermal problem due to imperfect contact with a component. You should peel the thin film off from the rubbers marked
b .
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Removal steps of the PCH bracket

1130 dc-in connector with cable

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
Removal steps of the dc-in connector with cable
Step Screw (quantity) Color Torque
1
M2.5 × 5 mm, flat-head, nylon-coated (2) Black 0.196 Nm
(2 kgf-cm)
Remove the Thermal fan, see “1120 Thermal fan and the PCH bracket” on page 79.
Chapter 9. Removing or replacing a FRU 81
Page 88
When installing: Ensure that the connector is attached firmly to the system board.

1140 Power button card and dc-in LED card

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1040 M.2 solid-state drive and M.2 solid-state drive bracket” on page 67
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
• “1120 Thermal fan and the PCH bracket” on page 79
• “1130 dc-in connector with cable” on page 81
Removal steps of the power button card
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Step Screw (quantity) Color
Torque
3
M2 × 3 mm, flat-head, nylon-coated (1)
Removal steps of the dc-in LED card
Black 0.196 Nm
(2 kgf-cm)
Chapter 9. Removing or replacing a FRU 83
Page 90
Step Screw (quantity) Color
Torque
2
M2 × 3 mm, flat-head, nylon-coated (1)
Black 0.196 Nm
(2 kgf-cm)

1150 System board

Important notices for handling the system board:
When handling the system board, read the following:
• The system board has an accelerometer, which can be broken when several thousands of G-forces are applied.
Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench can subject the accelerometer to as much as 6000 G's of shock.
• Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite.
• Avoid rough handling of any kind.
• At every point in the process, be sure not to drop or stack the system board.
• If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated conductive surface.
For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1040 M.2 solid-state drive and M.2 solid-state drive bracket” on page 67
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
• “1070 Memory module” on page 71
• “1080 Wireless LAN card” on page 73
• “1090 Coin-cell battery and Ethernet bracket” on page 74
• “1100 Media-card-reader card, the media-card-reader card bracket, and the media-card-reader card cable” on page 75
• “1110 ThinkPad LED card” on page 77
• “1120 Thermal fan and the PCH bracket” on page 79
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• “1130 dc-in connector with cable” on page 81
• “1140 Power button card and dc-in LED card” on page 82
Attention: The following components soldered on the top side of the system board are extremely sensitive. When you service the system board, avoid any kind of rough handling.
a Microprocessor b Graphics Processing Unit (GPU) c Platform Controller Hub (PCH)
Removal steps of the system board
Chapter 9. Removing or replacing a FRU 85
Page 92
11
Step Screw (quantity) Color Torque
14
M2 × 3 mm, flat-head, nylon-coated (4) Black 0.196 Nm
(2 kgf-cm)
When installing: Ensure that the connectors are attached firmly.

1160 Speaker assembly

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1040 M.2 solid-state drive and M.2 solid-state drive bracket” on page 67
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
• “1070 Memory module” on page 71
• “1080 Wireless LAN card” on page 73
• “1090 Coin-cell battery and Ethernet bracket” on page 74
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• “1100 Media-card-reader card, the media-card-reader card bracket, and the media-card-reader card cable” on page 75
• “1110 ThinkPad LED card” on page 77
• “1120 Thermal fan and the PCH bracket” on page 79
• “1130 dc-in connector with cable” on page 81
• “1140 Power button card and dc-in LED card” on page 82
• “1150 System board” on page 84
Removal steps of the speaker assembly
Step Screw (quantity) Color Torque
2
M2 × 2 mm, flat-head, nylon-coated, big head (2)
Black 0.196 Nm
(2 kgf-cm)

1170 Keyboard bezel assembly

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1040 M.2 solid-state drive and M.2 solid-state drive bracket” on page 67
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
• “1070 Memory module” on page 71
• “1080 Wireless LAN card” on page 73
• “1090 Coin-cell battery and Ethernet bracket” on page 74
• “1100 Media-card-reader card, the media-card-reader card bracket, and the media-card-reader card cable” on page 75
Chapter 9. Removing or replacing a FRU 87
Page 94
• “1110 ThinkPad LED card” on page 77
• “1120 Thermal fan and the PCH bracket” on page 79
• “1130 dc-in connector with cable” on page 81
• “1140 Power button card and dc-in LED card” on page 82
• “1150 System board” on page 84
• “1160 Speaker assembly” on page 86
Removal steps of the keyboard bezel assembly
Step Screw (quantity) Color
2
M2 × 5 mm, flat-head, nylon-coated (2)
Black 0.181 Nm
88 Hardware Maintenance Manual
Torque
(1.85 kgf-cm)
Page 95
5
4
When installing: Ensure that the connectors are attached firmly to the system board.

2010 LCD unit

For access, remove these FRUs:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
Removal steps of the LCD unit
Chapter 9. Removing or replacing a FRU 89
Page 96
Step Screw (quantity) Color Torque
4
M 2.5 × 5 mm, flat-head, nylon-coated (4)
Black 0.294 Nm
(3 kgf-cm)
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2020 LCD bezel

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
• “2010 LCD unit” on page 89
Removal steps of the LCD bezel
Chapter 9. Removing or replacing a FRU 91
Page 98
When installing: Ensure that all the latches are attached firmly.

2030 LCD hinges

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
• “2010 LCD unit” on page 89
• “2020 LCD bezel” on page 91
Removal steps of the LCD hinges
Step Screw (quantity) Color Torque
1
M2.5 × 3 mm, flat-head, nylon-coated (6)
Black 0.392 Nm
(4 kgf-cm)

2040 LCD panel and LCD cable

For access, remove these FRUs in order:
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Hardware Maintenance Manual
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• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
• “2010 LCD unit” on page 89
• “2020 LCD bezel” on page 91
• “2030 LCD hinges” on page 92
Removal step of the LCD panel and LCD cable
Step Screw (quantity) Color Torque
1
M2 × 3 mm, flat-head, nylon-coated, small head (2) Black 0.196 Nm
(2 kgf-cm)
Chapter 9. Removing or replacing a FRU 93
Page 100
When installing: Ensure that the LCD connector is attached firmly.

2050 Wireless LAN antenna assembly

For access, remove these FRUs in order:
• “1010 Bottom cover” on page 64
• “1020 Battery” on page 65
• “1030 Hard disk drive assembly, solid-state drive assembly, hard disk drive cable, or solid-state drive cable” on page 65
• “1050 Keyboard” on page 68
• “1060 Base cover assembly” on page 70
• “2010 LCD unit” on page 89
• “2020 LCD bezel” on page 91
• “2030 LCD hinges” on page 92
• “2040 LCD panel and LCD cable” on page 92
Removal steps of the wireless LAN antenna assembly
Release the antenna cables from the cable guides on the LCD rear cover.
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