AMD is a trademark of Advanced Micro Devices,
Inc. Bluetooth is a trademark owned by its
proprietor and used by HP Inc. under license.
Intel, Celeron, and Pentium are trademarks of
Intel Corporation in the U.S. and other
countries. Microsoft and Windows are U.S.
registered trademarks of the Microsoft group
of companies.
In accordance with Microsoft’s support policy,
HP does not support the Windows 8 or
Windows 7 operating system on products
congured with Intel and AMD 7th generation
and forward processors or provide any
Windows 8 or Windows 7 drivers on
http://www.support.hp.com.
The information contained herein is subject to
change without notice. The only warranties for
HP products and services are set forth in the
express warranty statements accompanying
such products and services. Nothing herein
should be construed as constituting an
additional warranty. HP shall not be liable for
technical or editorial errors or omissions
contained herein.
Product notice
This guide describes features that are common
to most models. Some features may not be
available on your computer.
Not all features are available in all editions or
versions of Windows. Systems may require
upgraded and/or separately purchased
hardware, drivers, software or BIOS update to
take full advantage of Windows functionality.
Windows 10 is automatically updated, which is
always enabled. ISP fees may apply and
additional requirements may apply over time
for updates. Go to http://www.microsoft.com
for details.
To access the latest user guides or manuals for
your product, go to http://www.hp.com/
support, and select your country. Select Find
your product, and then follow the on-screen
instructions.
Software terms
By installing, copying, downloading, or
otherwise using any software product
preinstalled on this computer, you agree to be
bound by the terms of the HP End User License
Agreement (EULA). If you do not accept these
license terms, your sole remedy is to return the
entire unused product (hardware and software)
within 14 days for a full refund subject to the
refund policy of your seller.
For any further information or to request a full
refund of the price of the computer, please
contact your seller.
First Edition: April 2017
Document Part Number: 926814-001
Safety warning notice
WARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place the
device directly on your lap or obstruct the device air vents. Use the device only on a hard, at surface. Do not
allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or
clothing, to block airow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as
pillows or rugs or clothing, during operation. The device and the AC adapter comply with the user-accessible
surface temperature limits dened by the International Standard for Safety of Information Technology
Equipment (IEC 60950-1).
Right ....................................................................................................................................................................... 5
Left ......................................................................................................................................................................... 6
Keyboard area ........................................................................................................................................................ 9
Special keys ....................................................................................................................................... 12
3 Illustrated parts catalog .............................................................................................................................. 17
Computer major components .............................................................................................................................. 17
Mass storage devices ........................................................................................................................................... 22
Miscellaneous parts ............................................................................................................................................. 23
4 Removal and replacement procedures preliminary requirements .................................................................... 25
Service considerations ......................................................................................................................................... 25
Plastic parts ....................................................................................................................................... 25
Cables and connectors ...................................................................................................................... 25
USB board .......................................................................................................................................... 53
Fan ..................................................................................................................................................... 54
Determining the BIOS version ........................................................................................................... 77
Downloading a BIOS update .............................................................................................................. 78
8 Backing up, restoring, and recovering ........................................................................................................... 79
Creating recovery media and backups ................................................................................................................ 79
Creating HP Recovery media (select products only) ......................................................................... 79
Using Windows tools ........................................................................................................................................... 80
Restore and recovery ........................................................................................................................................... 81
Recovering using HP Recovery Manager ........................................................................................... 81
What you need to know before you get started ............................................................. 81
Using the HP Recovery partition (select products only) ................................................. 82
vi
Using HP Recovery media to recover .............................................................................. 82
Changing the computer boot order ................................................................................ 83
Removing the HP Recovery partition (select products only) ......................................... 84
9 Using HP PC Hardware Diagnostics (UEFI) ....................................................................................................... 85
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................... 85
Hard drive specications ..................................................................................................................................... 89
Questions and answers ....................................................................................................................................... 97
Using HP Sure Start (select models only) ............................................................................................................ 98
12 Power cord set requirements ...................................................................................................................... 99
Requirements for all countries ............................................................................................................................ 99
Requirements for specic countries and regions ............................................................................................. 100
Index ........................................................................................................................................................... 105
vii
viii
1Product description
CategoryDescription
Product nameHP HP 255 G6 Notebook PC
ProcessorAMD Dual-Core processor
A6-9220 (2.5-GHz, turbo up to 2.9 GHz, 2133-MHz/1-MB L2 cache)
E2-9000e (1.5-GHz, turbo up to 2.0 GHz, 1866-MHz/1-MB L2 cache)
GraphicsInternal graphics
AMD Radeon™ R4 Graphics
AMD Radeon R2 Graphics
Support HD Decode, DX12, and HDMI
Panel39.6-cm (15.6-in), high-denition (HD), white light-emitting diode (WLED), SVA, anti glare (1366×768)
display, slim 3.2 mm, eDP; typical brightness: 220 nits
39.6-cm (15.6-in), full high-denition (FHD), white light-emitting diode (WLED), SVA, anti glare
(1920×1080) display, slim 3.2 mm, eDP; typical brightness: 220 nits
(7)Security cable slotAttaches an optional security cable to the computer.
NOTE: The security cable is designed to act as a deterrent, but
it may not prevent the computer from being mishandled or
stolen.
Right5
Left
ComponentDescription
(1)Power connectorConnects an AC adapter.
(2)Battery lightWhen AC power is connected:
●
White: The battery charge is greater than 90 percent.
●
Amber: The battery charge is from 0 to 90 percent.
●
O: The battery is not charging.
When AC power is disconnected (battery not charging):
●
Blinking amber: The battery has reached a low battery
level. When the battery has reached a critical battery
level, the battery light begins blinking rapidly.
●
O: The battery is not charging.
(3)VentEnables airow to cool internal components.
NOTE: The computer fan starts up automatically to cool
internal components and prevent overheating. It is normal for
the internal fan to cycle on and o during routine operation.
(4)External monitor portConnects an external VGA monitor or projector.
(5)RJ-45 (network) jack/status lightsConnects a network cable.
●
White (left): The network is connected.
●
Amber (right): Activity is occurring on the network.
(6)HDMI portConnects an optional video or audio device, such as a high-
denition television, any compatible digital or audio
component, or a high-speed High Denition Multimedia
Interface (HDMI) device.
(7)USB 3.x SuperSpeed ports (2)Connect a USB device, such as a cell phone, camera, activity
tracker, or smartwatch, and provides high-speed data transfer.
(8)Audio-out (headphone)/Audio-in (microphone)
combo jack
Connects optional powered stereo speakers, headphones,
earbuds, a headset, or a television audio cable. Also connects
an optional headset microphone. This jack does not support
optional standalone microphones.
6Chapter 2 Components
ComponentDescription
WARNING! To reduce the risk of personal injury, adjust the
volume before putting on headphones, earbuds, or a headset.
For additional safety information, refer to the Regulatory, Safety, and Environmental Notices.
To access this guide:
1.Type support in the taskbar search box, and then select
the HP Support Assistant app.
‒ or –
Click the question mark icon in the taskbar.
2.Select My PC, select the Specications tab, and then
select User Guides.
NOTE: When a device is connected to the jack, the computer
speakers are disabled.
Left7
Display
ComponentDescription
(1)WLAN antennas*Send and receive wireless signals to communicate with wireless
local area networks (WLANs).
(2)Camera lightOn: The camera is in use.
(3)Camera Records video and captures photographs. Some models allow
you to video conference and chat online using streaming video.
To use the camera:
▲ Type camera in the taskbar search box, and then select
Camera.
(4)Internal microphoneRecords sound.
*The antennas are not visible from the outside of the computer. For optimal transmission, keep the areas immediately around the
antennas free from obstructions.
For wireless regulatory notices, see the section of the Regulatory, Safety, and Environmental Notices that applies to your country or
region.
To access this guide:
1.Type support in the taskbar search box, and then select the HP Support Assistant app.
‒ or –
Click the question mark icon in the taskbar.
2.Select My PC, select the Specications tab, and then select User Guides.
8Chapter 2 Components
Keyboard area
TouchPad
ComponentDescription
(1)TouchPad zoneReads your nger gestures to move the pointer or activate
items on the screen.
(2)Left TouchPad buttonFunctions like the left button on an external mouse.
(3)Right TouchPad buttonFunctions like the right button on an external mouse.
Keyboard area9
Lights
ComponentDescription
(1)Caps lock lightOn: Caps lock is on, which switches the key input to all capital
letters.
(2)Mute light
●
Amber: Computer sound is o.
●
O: Computer sound is on.
10Chapter 2 Components
Button
ComponentDescription
Power button
●
When the computer is o, press the button to turn on the
computer.
●
When the computer is on, press the button briey to initiate
Sleep.
●
When the computer is in the Sleep state, press the button briey
to exit Sleep.
●
When the computer is in Hibernation, press the button briey to
exit Hibernation.
CAUTION: Pressing and holding down the power button results in the
loss of unsaved information.
If the computer has stopped responding and shutdown procedures are
ineective, press and hold the power button for at least 5 seconds to
turn o the computer.
To learn more about your power settings, see your power options.
▲ Type power options in the taskbar search box, and then
select Power Options.
‒ or –
Right-click the Power meter icon and then select Power
Options.
Keyboard area11
Special keys
ComponentDescription
(1)esc keyDisplays system information when pressed in combination with
(2)fn keyExecutes frequently used system functions when pressed in
the fn key.
combination with another key. Such key combinations are called
hot keys.
(3)Windows key Opens the Start menu.
NOTE: Pressing the Windows key again will close the Start
menu.
(4)Action keysExecute frequently used system functions.
See Action keys on page 13.
(5)num lk keyTurns the embedded numeric keypad on and o.
(6)Integrated numeric keypad A separate keypad to the right of the alphabet keyboard. When
num lk is pressed, the integrated keypad can be used like an
external numeric keypad.
NOTE: If the keypad function is active when the computer is
turned o, that function is reinstated when the computer is
turned back on.
12Chapter 2 Components
Action keys
An action key performs the function indicated by the icon on the key. To determine which keys are on your
product, see Special keys on page 12.
▲
IconDescription
To use an action key, press and hold the key.
Opens Help and Support, which provides tutorials, information about the Windows operating system and
your computer, answers to questions, and updates to your computer.
Help and Support also provides automated troubleshooting tools and access to support.
Decreases the screen brightness incrementally as long as you hold down the key.
Increases the screen brightness incrementally as long as you hold down the key.
Switches the screen image among display devices connected to the system. For example, if a monitor is
connected to the computer, repeatedly pressing the key alternates the screen image from computer display
to monitor display to simultaneous display on both the computer and monitor.
Turns the keyboard backlight o or on.
NOTE: To conserve battery power, turn o this feature.
Mutes or restores speaker sound.
Decreases speaker volume incrementally while you hold down the key.
Increases speaker volume incrementally while you hold down the key.
Plays the previous track of an audio CD or the previous section of a DVD or a Blu-ray Disc (BD).
Starts, pauses, or resumes playback of an audio CD, a DVD, or a BD.
Plays the next track of an audio CD or the next section of a DVD or a BD.
Turns the airplane mode and wireless feature on or o.
NOTE: The airplane mode key is also referred to as the wireless button.
NOTE: A wireless network must be set up before a wireless connection is possible.
NOTE: The action key feature is enabled at the factory. You can disable this feature by pressing and holding
the fn key and the left shift key. The fn lock light will turn on. After you have disabled the action key feature,
you can still perform each function by pressing the fn key in combination with the appropriate action key.
Keyboard area13
Bottom
ComponentDescription
(1)Battery lockLocks the battery in the battery bay.
(2)Battery bayHolds the battery.
(3)Battery release latchReleases the battery.
(4)Speakers (2)Produce sound.
(5)VentEnables airow to cool internal components.
NOTE: The computer fan starts up automatically to cool
internal components and prevent overheating. It is normal
for the internal fan to cycle on and o during routine
operation.
14Chapter 2 Components
Labels
The labels axed to the computer provide information you may need when you troubleshoot system
problems or travel internationally with the computer.
IMPORTANT: Check the following locations for the labels described in this section: the bottom of the
computer, inside the battery bay, under the service door, or on the back of the display.
●
Service label—Provides important information to identify your computer. When contacting support, you
will probably be asked for the serial number, and possibly for the product number or the model number.
Locate these numbers before you contact support.
Your service label will resemble one of the examples shown below. Refer to the illustration that most
closely matches the service label on your computer.
Component
(1)Serial number
(2)Product number
(3)Warranty period
(4)Model number (select products only)
Component
(1)Model name (select products only)
(2)Product number
(3)Serial number
(4)Warranty period
●
Regulatory label(s)—Provide(s) regulatory information about the computer.
●
Wireless certication label(s)—Provide(s) information about optional wireless devices and the approval
markings for the countries or regions in which the devices have been approved for use.
Labels15
16Chapter 2 Components
3Illustrated parts catalog
Computer major components
NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.
Computer major components17
ItemComponentSpare part
number
(1)Display assembly
NOTE: For display assembly spare part information, see Display assembly subcomponents
on page 20.
(2)Top cover/keyboard
NOTE: For a detailed list of keyboard country codes, see Top cover/keyboard on page 76.
Asteroid silver models with no backlight929904-xxx
Dark ash silver models with no backlight929906-xxx