HP Notebook PC (AMD) HP 255 G4 Notebook PC - Maintenance and Service Guide

6 Removal and replacement procedures for Authorized Service Provider parts ................................................... 33
Component replacement procedures .................................................................................................................. 33
Display subcomponents (bezel, webcam, panel) ............................................................................. 33
Bottom cover ..................................................................................................................................... 37
Optical drive board ............................................................................................................................ 38
Hard drive .......................................................................................................................................... 40
WLAN module .................................................................................................................................... 42
Memory module ................................................................................................................................ 44
RTC battery ........................................................................................................................................ 45
USB board .......................................................................................................................................... 46
Speakers ............................................................................................................................................ 47
Heat sink assembly ........................................................................................................................... 49
Fan ..................................................................................................................................................... 52
TouchPad button board ..................................................................................................................... 54
System board .................................................................................................................................... 55
Display assembly ............................................................................................................................... 58
Power connector cable ...................................................................................................................... 66
Power button board .......................................................................................................................... 67
7 Using Setup Utility (BIOS) in Windows 7 ......................................................................................................... 69
Starting Setup Utility (BIOS) ................................................................................................................................ 69
Updating the BIOS ................................................................................................................................................ 69
Determining the BIOS version ........................................................................................................... 69
Downloading a BIOS update .............................................................................................................. 69
8 Using Setup Utility (BIOS) in Windows 8.1 ...................................................................................................... 71
Starting Setup Utility (BIOS) ................................................................................................................................ 71
Updating the BIOS ................................................................................................................................................ 71
Determining the BIOS version ........................................................................................................... 71
Downloading a BIOS update .............................................................................................................. 71
9 Using Setup Utility (BIOS) in Windows 10 ....................................................................................................... 73
Starting Setup Utility (BIOS) ................................................................................................................................ 73
Updating Setup Utility (BIOS) .............................................................................................................................. 73
Determining the BIOS version ........................................................................................................... 73
Downloading a BIOS update .............................................................................................................. 74
Synchronizing a tablet and keyboard (select products only) .............................................................................. 75
10 Backing up, restoring, and recovering in Windows 7 ..................................................................................... 77
Creating backups ................................................................................................................................................. 77
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