Contents About this manual . . . . . . . . . . . . iii Remove the 2280 solid-state drive (for selected models) . . . . . . . . . . . . . . . . . . 34 Remove the speakers . . . . . . . . . . . . 35 Remove the coin-cell battery. . . . . . . . . . 36 Remove the Wi-Fi card . . . . . . . . . . . . 37 Remove the heat sink . . . . . . . . . . . . 38 Remove the fan . . . . . . . . . . . . . . . 39 Remove the DC-in cable . . . . . . . . . . . 40 Remove the I/O board . . . . . . . . . . . . 42 Remove the I/O board (without fingerprint board) . . . . . . . . . . . . . . . . . . 43 Remove the fingerprint reader (for selected models) . . . . . . . . . . . . . . . . . . 45 Remove the system board. . . . .
. . . . . . 46 Use a Golden Key U1 tool to flash-write key id information . . . . . . . . . . . . . . . 47 Remove the upper case. . . . . . . . . . . . 47 Remove the LCD bezel . . . . . . . . . . . . 49 Remove the hinge cover . . . . . . . . . . . 49 Remove the LCD module . . . . . . . . . . . 50 Remove the hinges . . . . . . . . . . . . . 51 Remove the microphone rubbers . . . . . . . . 53 Remove the EDP cable . . . . . . . . . . . . 53 Remove the camera module . . . . . . . . . . 54 Trademarks . . . . . . . . . . . . . . . . lvii 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 . . . . . . 23 Locate FRUs and CRUs . . . . . . . . . . . 23 Chapter 4. Removing a FRU or CRU . . . . . . . . . . . . . . . . . . 27 Service tools . . . . . . . . . . . . . . . . 27 General guidelines. . . . . . . . . . . . . . 27 Remove the lower case . . . . . . . . . .
. . 28 Remove the battery pack . . . . . . . . . . . 29 Remove the memory . . . . . . . . . . . . . 32 Remove the 2242 solid-state drive (for selected models) . . . . . . . . . . . . . . . . . . 33 © Copyright Lenovo 2021 i