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) plate . . . . . 33
Remove the solid-state drive (SSD) . . . . . . . 34
Remove the solid-state drive (SSD) stand off . . . 35
Remove the thermal module . . . . . . . . . . 35
Remove the Wi-Fi card . . . . . . . . . . . . 36
Remove the DC-in bracket . . . . . . . . . . 37
Remove the I/O board . . . . . . . . . . . . 38
Remove the memory module . . . . . . . . . 39
Remove the CMOS battery . . . . . . . . . . 40
Remove the speakers . . . . . . . . . . . . 41
Remove the touchpad board cable . . . . . . . 41
Remove the system board and the I/O board
cable . . . . . . . . . . . . . . . . . . . 42
Use a Golden Key U1 tool to flash-write key id
information . . . . . . . . . . . . . . . 44
Remove the strip cover . . . . . . . . . . . . 44
Remove the LCD module . . . . . . . . . . . 45
Remove the upper case (with touchpad, power
button, keyboard, waterproof breath film and
antenna cables) . . . . . . . . . . . . . . . 47
Disassemble the LCD module . . . . . . . . . 47
Remove the LCD bezel (with removable
tape) . . . . . . . . . . . . . . . . . 48
Remove the hinge cover. . . . . . . . . . 48
Remove the microphone rubber. . . . . . . 49
Remove the LCD panel . . . . . . . . . . 49
Remove the microphone . . . . . . . . . 51
Remove the camera bracket and camera
cable . . . . . . . . . . . . . . . . . 52
Remove the camera board. . . . . . . . . 53
Remove the EDP cable . . . . . . . . . . 53
Remove the LCD cover . . . . . . . . . . 54
Appendix A. Label locations. . . . . . 55
Trademarks . . . . . . . . . . . . . . . . lvii
© Copyright Lenovo 2021 i