Huawei P8 Lite 2017, PRA-LA1 Maintenance Manual
Prepared By
Qin Yonghui (employee ID:
00291387)
Date
2016-11-01
Reviewed By
Maintenance support team
Date
Approved By
Service representative
Date
Prague Simplified Maintenance Manual
Huawei Technologies CO., LTD.
All Rights Reserved
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Date
Version
Change
Reason
Changed
Chapter
Description
Author
2016-11-01
V1.0
Released the
first version.
Qin Yonghui
(employee ID:
00291387)
Change History
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Contents
1 Overview ......................................................................................................................................... 5
1.1 Applicable Scope .............................................................................................................................................. 5
1.2 Introduction ...................................................................................................................................................... 5
1.3 How to Obtain Product and Maintenance Information .................................................................................... 5
2 Product Introduction .................................................................................................................... 5
2.1 Appearance ................................................................ ................................................................ ....................... 5
2.2 Product Specifications ...................................................................................................................................... 5
3 Exploded View............................................................................................................................... 7
4 Spare Parts ...................................................................................................................................... 7
4.1 Commonly Used Parts ...................................................................................................................................... 7
4.2 How to Obtain BOM Codes ........................................................................................................................... 10
5 Software Upgrade ....................................................................................................................... 12
5.1 Preparation ..................................................................................................................................................... 12
5.2 Checking the Software Version ...................................................................................................................... 13
5.3 Upgrade Using a microSD Card ..................................................................................................................... 15
5.3.1 Performing Normal Upgrade................................................................................................................. 15
5.3.2 Performing Forcible Upgrade ............................................................................................................... 16
5.4 Upgrade Using a USB Cable .......................................................................................................................... 17
5.4.1 Installing the USB Upgrade Driver ....................................................................................................... 17
5.5 Installing the USB Upgrade Tool ................................................................................................................... 18
5.6 Upgrade Guide ............................................................................................................................................... 18
5.6.1 Extracting the Installation Package ....................................................................................................... 18
5.6.2 Upgrading the UPDATE.APP Package ................................................................................................. 18
5.6.3 Upgrading the data Package .................................................................................................................. 21
5.6.4 Precautions During Upgrade ................................................................................................................. 21
5.6.5 Remove Devices Button ........................................................................................................................ 22
5.6.6 Procedures ............................................................................................................................................. 22
5.6.7 Differentiating Between Upgrade Software .......................................................................................... 22
5.7 Troubleshooting .............................................................................................................................................. 22
6 Maintenance Tools ...................................................................................................................... 23
7 Disassembly Process ................................................................................................................... 24
7.1 Disassembly Tools .......................................................................................................................................... 24
7.2 Removing the Card Tray and Battery Cover .................................................................................................. 26
7.3 Removing the Fingerprint Sensor Decorating Part......................................................................................... 28
7.4 Removing Steel Sheets and Speaker .............................................................................................................. 29
7.5 Removing the Coaxial Cable and the Sub-Board ........................................................................................... 30
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7.6 Removing the PCBA ...................................................................................................................................... 31
7.7 Clearing the Thermal Gel ............................................................................................................................... 32
7.8 Removing the Receiver, Proximity Sensor Sub-Board, and Motor ................................................................ 33
7.9 Removing the Battery..................................................................................................................................... 34
7.10 Removing the TP&LCD Module ................................................................................................................. 35
7.11 How to View the Version Information on the PCBA .................................................................................... 35
7.12 IMEIs and Recording Methods .................................................................................................................... 38
8 Assembly Guide .......................................................................................................................... 39
9 Troubleshooting .......................................................................................................................... 41
9.1 Power-On Failure ................................................................ ................................................................ ........... 41
9.2 Repetitive Restarting and Screen Freezing ..................................................................................................... 44
9.3 Overheat and Short Standby Time .................................................................................................................. 44
9.4 Charging Failure ............................................................................................................................................. 45
9.5 No Ringtone ................................................................................................................................................... 46
9.6 Receiver Failure ............................................................................................................................................. 47
9.7 Microphone Failure (Barely Audible or No Voice Coming Out) ................................................................... 47
9.8 Weak Or No Reception ................................................................................................................................... 48
9.9 SIM Card Detection Failure ........................................................................................................................... 49
9.10 Camera Failure ............................................................................................................................................. 50
9.11 TP Failure ..................................................................................................................................................... 50
10 Functional Test .......................................................................................................................... 50
10.1 MMI Test ...................................................................................................................................................... 50
10.2 Audio and Data Service Test ........................................................................................................................ 61
10.3 Charging Test ............................................................................................................................................... 62
11 Description of Erasing Customer Data ................................................................................. 62
11.1 Object ........................................................................................................................................................... 63
11.2 Method ......................................................................................................................................................... 63
11.3 Verification ................................................................................................................................................... 64
11.4 Restoration of Non-Customer Data .............................................................................................................. 64
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1 Overview
Item
Description
Dimensions
147.20 mm x 72.94 mm x 7.60 mm (5.80 in. x 2.87 in. x 0.30 in.)
Technical standards
WCDMA/HSDPA/HSUPA: 3GPP, FDD Release 10
Frequency bands
WCDMA: 2100M/900M/1900M
GSM: 850M/900M/1800M/1900M
Weight
About 147 g (with battery)
Appearance
Bar-type
Antenna
Built-in
1.1 Applicable Scope
This document is available in the simplified and advanced versions. The two versions are respectively
applicable to common service centers (ASCs) and high-level repair centers (HLRCs) authorized by
Huawei. The simplified version (this document) provides maintenance and repair instructions for
technicians at authorized service centers to conduct services of level 0 and level 1. Being Huawei
proprietary, this document is accessible only for ASCs. Although every effort was made to ensure the
accuracy of the document, errors may still exist. If you find any errors or have any suggestions, report
them through ComPartner.
1.2 Introduction
This document introduces the product features, mechanical parts, assembly and disassembly procedures,
and common troubleshooting methods. You will be able to rectify common faults of the product after
your learn this document.
1.3 How to Obtain Product and Maintenance Information
To obtain product and maintenance information, visit Huawei service website. You are recommended to
install the ComPartner platform to download maintenance-required tools and software. For details about
the Huawei Device Knowledge Base website and how to obtain the ComPartner tool and account,
consult the local service manager.
To obtain the ComPartner installation package, log in to http://app.huawei.com/tkb/, and search for
ComPartner. You will find the ComPartner installation package at:
http://app.huawei.com/tkb/tskb_index.html#!tservice/resource/document/documentList.html?kfLag=P1
515
2 Product Introduction
2.1 Appearance
The appearance is not provided for confidential purpose.
2.2 Product Specifications
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Item
Description
SIM/USIM
Standard 6-pin SIM card interface, supporting the 1.8/3 V USIM card
Charger
5 V, 1 A
Battery
3,000 mAh
Standby time: 300 hours
Talk time: 20 hours
Cameras
Rear camera
CMOS 12 MP
Front camera
CMOS 8 MP
Display
Resolution
1920 x 1080 (FHD)
LCD type
LTPS
Color level
16.7M
LCD size
5.2 inches
Ports
Charging port
micro-USB port
USB port
micro-USB port
microSD card slot
Capacity: 128 GB
Headset jack
3.5 mm dual-track stereo headset
Bluetooth
BT4.1
Wi-Fi
802.11 b/g/n
USB
USB2.0, 480 Mbps
FM radio
Embedded FM radio
GPS
GPS/Glonass/AGPS/BeiDou Navigation Satellite System
Storage capacity
eMCP: 3 GB LPDDR3+16 GB eMMC (international version)
3 GB LPDDR3+32 GB eMMC (full-frequency standard version)
eMMC+DDR 4 GB LPDDR3+32 GB eMMC (full-frequency advanced
version)
4 GB LPDDR3+64 GB eMMC (full-frequency premium version)
Maximum transmission
power
CDMA 2,000 MHz: 23–26 dBm (Power Class 2)
TD-LTE: 19.5–25 dBm (Power Class 3)
FDD Band1: 21–25 dBm (Power Class 3)
FDD Band3: 19.5–25 dBm (Power Class 3)
GSM 850 MHz/900 MHz: 33 dBm (Power Class 4)
DCS 1800/1900 MHz: 30 dBm (Power Class 1)
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Item
Description
Static sensitivity
EGSM/DCS/PCS (GSM 850/900/1800/1900): better than –102 dBm/200 kHz
CDMA2000 1X: better than –104 dBm/1.23 MHz
CDMA2000 EVDO Rev.A: better than –105.5 dBm/1.23 MHz
LTE FDD Band 1: better than –100 dBm/5 MHz
LTE FDD Band 3: better than –101.7 dBm/1.4 MHz
TD-LTE Band 41: better than –98 dBm/5 MHz
Temperature
Operating temperature: –20ºC to +60ºC (not being charged)
Storage temperature: –20ºC to +35ºC (with a maximum storage period of 6
months)
Humidity
Operating humidity: 5% to 95% RH
Name
Rear camera: 12 MP
BOM code: 23060227
Name
Front camera: 8 MP
BOM code: 23060200
Name
Battery
BOM code: 24022215
Specifications vary by product version. For details, see the product overview document.
3 Exploded View
The exploded view is not provided for confidential purpose.
4 Spare Parts
4.1 Commonly Used Parts
The following tables are provided for your reference only. They are subject to changes without notice.
Obtain the latest component information from the Huawei TCS. If you have any questions, contact the
local technical support center. (Parts marked with "HLRC" are dedicated for HLRCs. Do not use them
in common service centers.)
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Name
Speaker
BOM code:
22020252
Name
Proximity sensor
sub-board
BOM code: /
Name
Fingerprint sensor
BOM code: 23100166
Name
Motor
BOM code:
32050045
Name
Main FPC
BOM code:
03023YYX
Name
PCB3
BOM code: 03024EWM
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Name
PCB2
BOM code: 03024EWG
Name
USB sub-board
BOM code: 03024EYA
Name
Side button FPC
BOM code: 03023YXB
Name
Receiver
BOM code: 22030072
Name
TP/LCD
BOM code: 23020367
(White)
Name
RF cable
BOM code: 14241028
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Name
Three-in-two card
tray
BOM code:
51661CYH
(Black)
Name
Headset jack silicone
cover
BOM code:
51661CVH
Name
Prague fingerprint FPC
BOM code:
03023YYA
4.2 How to Obtain BOM Codes
The BOM codes may change with time. To ensure the correctness of a BOM code, query the latest
BOM information from https://tcs.huawei.com before applying for a part.
To check a BOM code:
Visit https://tcs.huawei.com using the ASC account and password.
1. To query the BOM information about a phone and pictures corresponding to the BOM
codes:
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(1) Go to Basic Information > BOM Tree Info. Define the values for Product Line, Product
Type, Product Model, and Product Description. The system then displays the
comprehensive BOM information of the phone in the form of BOM tree structure.
(2) Click the BOM code of the part to query. The system displays the picture of the part. Use the
picture to confirm whether the part is what you are looking for.
2. To query the maintenance level of the part:
(1) Go to Basic Information > Material Info, enter the BOM code or description, and click
Query to query the maintenance level, maintenance price, and product on which the part is
used.
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Item
Description
Remarks
Upgrade
environment
Computer
OS: Windows 7
microSD card
Available memory space larger than 4 GB
Battery
With at least 15% power remaining
USB cable
Standard USB cable
USB upgrade drive
USB driver from the HISI-V8R5 platform
Upgrade tool
升级工具_多台_WH62406270ML01Ver1010
Upgrade file
SDupdate_Package.tar.gz
Use the latest version for upgrade.
(2) Click the BOM code. The system displays the part picture.
5 Software Upgrade
5.1 Preparation
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Item
Description
Remarks
Upgrade
method
Using a microSD card
Normal upgrade
Forcible upgrade
Using a USB cable
Normal upgrade
Forcible upgrade
Over-the-air
If there is a Wi-Fi network available, download the
upgrade file over the network, and the upgrade will
proceed automatically.
Note:
1. Software upgrade will erase important data on user's phone. Ensure that the user has backed up the
data before the upgrade.
2. Before the upgrade, ensure that the remaining battery power is more than 15%. Connect the phone
to its charger for power supply and do not remove its battery during the upgrade.
3. Software can only be upgraded from an earlier version to a later version of the same category. Do
not perform upgrade across versions in different countries or across different customized versions.
See documents on naming software for methods to differentiate between different software
versions.
4. If the upgrade fails, you can use the forcible upgrade method to upgrade the phone again.
5. Normal upgrade is preferred for phones that can be powered on. Forcible upgrade may lead to
information loss and is not recommended.
Back up important user data: The upgrade will delete user data. Back up any important data
before the upgrade.
(1) For contact list, text messages, and third-party applications installed, do as follows: Insert a
microSD card, and use backup software to back up all the information to the card.
(2) For information stored on the memory of the phone, such as photos, videos, audio, and
personal files, use the file manager on the phone to back them up to the microSD card.
5.2 Checking the Software Version
To check the software version, touch Settings > About phone > Build number to view the current
version.
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Sales
Area
External Model (To Be Certified By
Ministry of Industry and Information
Technology)
Internal Model
China
PRA-AL00X
Prague-AL00C, full-frequency
dual-card premium version
PRA-AL00X
Prague-AL00B, full-frequency
dual-card premium version
PRA-AL00
Prague-AL00A, full-frequency
dual-card standard version
PRA-TL10
Prague-TL00A, China Mobile
customized version
PRA-TL00
Prague-TL10A, full-frequency version
only available from China Mobile
Outside
China
PRA-LA1
Prague-L21, Middle East and North
Africa Huawei dual-card version
PRA-LA1
Prague-L01, Middle East and North
Africa Huawei single-card version
PRA-LX1
Prague-L31, European Huawei
dual-card version
PRA-LX1
Prague-L11, European Huawei
single-card version
PRA-LX2
Prague-L22, Asia and Pacific Huawei
dual-card version
Based on the build number and the following table, you can check whether the phone is a standard or
advanced version.
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Sales
Area
External Model (To Be Certified By
Ministry of Industry and Information
Technology)
Internal Model
PRA-LX2
Prague-L02, Asia and Pacific Huawei
single-card version
PRA-LX3
Prague-L23, Latin America Huawei
dual-card version
PRA-LX3
Prague-L03, Latin America Huawei
single-card version
5.3 Upgrade Using a microSD Card
5.3.1 Performing Normal Upgrade
1. Format the microSD card using the FAT32 formatting method. (The following pictures are for
your reference.)
2. Create a dload folder in the microSD card's root directory.
3. Extract the upgrade file SDupdate_Package.tar.gz and copy it to the dload folder.
4. Insert the microSD card and power on the phone. Enter *#*#2846579#*#* on the dialing pad. On
the ProjectMenu screen, touch Software Upgrade > SDCard Upgrade > OK.
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5. The upgrade progress is displayed on the screen, as shown in the following figures.
6. After the upgrade is complete, check whether the software version is the correct one. See section
5.2 "Checking the Software Version" for details about how to query the software version.
5.3.2 Performing Forcible Upgrade
If the phone fails to power on, use the following method to perform a forcible upgrade:
1. Press and hold the volume up and down buttons, and press the power button. The phone
automatically starts the forcible upgrade. The upgrade process is the same as that shown in the
preceding figures for normal upgrade.
2. If the forcible upgrade fails, connect the phone to a PC. If no port is displayed, refer to Section 5.4
"Startup Failure" in Prague Advanced Maintenance Manual V2.0.
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5.4 Upgrade Using a USB Cable
USB cable
The following figure shows the connection for upgrade using a USB cable.
5.4.1 Installing the USB Upgrade Driver
1. Double-click DriverSetup.exe to install the driver.
2. After the driver is successfully installed, power on the phone, connect the phone to the computer
using a USB cable, and go to Device Manager to check whether the port is displayed. If no port is
displayed, enter *#*#2846579#*#* to access manufacture mode (on the ProjectMenu screen,
touch Background Settings > USB Port Settings > Manufacture Mode), as shown in the
following figures.
(1) If the PCUI port and DBAdapter are displayed as shown in the following figure, it indicates
that the driver is installed.
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(2) If no port is displayed, install the latest driver.
5.5 Installing the USB Upgrade Tool
1. Extract the tool package to the computer.
2. Click WH62406270ML01 Setup.exe to install the tool.
3. After the installation is complete, the following shortcut icon is displayed on the desktop.
5.6 Upgrade Guide
5.6.1 Extracting the Installation Package
Extract SDupdate_Package.tar.gz, and a dload folder is displayed, which contains a package
UPDATE.APP for upgrade using a microSD card and a pre-installed data folder corresponding to the
country where the carrier resides.
5.6.2 Upgrading the UPDATE.APP Package
1. Start the upgrade tool (by double-clicking the shortcut icon). The following window will then be
displayed.
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2. Check Not Use Safedog.
3. Check Firmware, and select the UPDATE.APP package in the PC.
4. Check Please Choose The Configuration File, and select the Hisi.xml file in the tool directory, as
shown in the following figure.
5. Click Next to enter the following page.
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6. (Ensure that the DBAdapter port has been correctly mapped; otherwise, software loading will fail.)
Click the Scan && Download button, and the tool will scan for the mapped ports in Device
Manager (names of the ports to be found are specified in the configuration file) and start
downloading the software. When a port is detected, the port number is displayed in the list box, as
shown in the following figure. You can click Scan && Download several times until all UE ports
are found. During the upgrade, the tool page is displayed, as shown in the following figure.
The following screen is displayed on the phone.
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