5 Removal and replacement procedures for Customer Self-Repair parts ............................................................. 29
Component replacement procedures .................................................................................................................. 29
Bottom cover ..................................................................................................................................... 29
Battery ............................................................................................................................................... 31
SIM card ............................................................................................................................................. 32
Memory module ................................................................................................................................ 33
6 Removal and replacement procedures for Authorized Service Provider parts ................................................... 35
Component replacement procedures .................................................................................................................. 35
Display subcomponents (bezel, panel, webcam) ............................................................................. 35
Solid-state drive (M.2) ....................................................................................................................... 39
WLAN module .................................................................................................................................... 40
WWAN module ................................................................................................................................... 42
RTC battery ........................................................................................................................................ 43
Keyboard ........................................................................................................................................... 45
Speakers ............................................................................................................................................ 48
Touchpad module .............................................................................................................................. 49
LED board .......................................................................................................................................... 50
Fans ................................................................................................................................................... 51
Smart card reader .............................................................................................................................. 53
Hard drive .......................................................................................................................................... 54
Fingerprint reader board ................................................................................................................... 56
Heat sink assembly ........................................................................................................................... 58
Graphics board .................................................................................................................................. 62
System board .................................................................................................................................... 63
Buttons .............................................................................................................................................. 66
Display assembly ............................................................................................................................... 67
Lock bracket ...................................................................................................................................... 75
7 Troubleshooting guide ................................................................................................................................. 76
Resources ............................................................................................................................................................. 77
General troubleshooting steps ............................................................................................................................ 77
Identify the issue ............................................................................................................................... 78
1. Understand the issue .................................................................................................. 78
Boot up sequence ......................................................................................... 78
Failure classication ..................................................................................... 78
2. Examine the environment .......................................................................................... 80
3. Perform a visual inspection of hardware ................................................................... 81
4. Update BIOS and drivers ............................................................................................. 81
Manually updating BIOS and drivers ............................................................ 81
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