Contents
About this manual . . . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . . 2
Handling devices that are sensitive to electrostatic
discharge . . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Chapter 2. General checkout . . . . . 21
What to do first . . . . . . . . . . . . . . . 21
CRU list . . . . . . . . . . . . . . . . . . 22
Chapter 3. Identifying FRUs
(CRUs) . . . . . . . . . . . . . . . . . 23
Locate FRUs and CRUs . . . . . . . . . . . 23
Chapter 4. Removing a FRU or
CRU . . . . . . . . . . . . . . . . . . 29
Service tools . . . . . . . . . . . . . . . . 29
General guidelines. . . . . . . . . . . . . . 29
Remove the lower case . . . . . . . . . . . . 30
Remove the battery pack . . . . . . . . . . . 31
Remove the solid-state drive (SSD) . . . . . . . 32
Remove the Wi-Fi card . . . . . . . . . . . . 33
Remove the heat sink . . . . . . . . . . . . 34
Remove the fan . . . . . . . . . . . . . . . 35
Remove the I/O board . . . . . . . . . . . . 36
Remove the I/O board cable . . . . . . . . . . 37
Remove the fingerprint board module . . . . . . 38
Remove the speakers . . . . . . . . . . . . 39
Remove the antenna . . . . . . . . . . . . . 40
Remove the touchpad cable . . . . . . . . . . 41
Remove the system board. . . . . . . . . . . 41
Use a Golden Key U1 tool to flash-write key id
information . . . . . . . . . . . . . . . 43
Remove the touchpad . . . . . . . . . . . . 44
Remove the LCD unit . . . . . . . . . . . . 45
Remove the upper case. . . . . . . . . . . . 47
Disassemble the LCD unit . . . . . . . . . . . 48
Remove the hinge cover. . . . . . . . . . 48
Remove the LCD panel and EDP cable . . . . 48
Remove the microphone rubbers . . . . . . 50
Remove the camera privacy shutter . . . . . 51
Remove the hinges. . . . . . . . . . . . 51
Remove the camera . . . . . . . . . . . 52
Remove the camera cable . . . . . . . . . 53
Remove the touch panel cable and sensor
board . . . . . . . . . . . . . . . . . 53
Remove the LCD cover . . . . . . . . . . 55
Appendix A. Label locations. . . . . . 57
Trademarks . . . . . . . . . . . . . . . . . lix
© Copyright Lenovo 2022 i
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