Lenovo YOGA SLIM 7-14APU Hardware Maintenance Manual page 42

"Remove the solid-state drive (SSD)" on page 28
"Remove the Wi-Fi card" on page 30
"Remove the I/O board bracket" on page 31
"Remove the system board bracket" on page 32
"Remove the heat sink" on page 33
"Remove the fan" on page 34
Step 1. Peel off the tape and then disconnect cables connected to the system board.
Figure 21. Peel off the tape and disconnect cables connected to the system board
Step 2. Remove twelve screws and then remove the system board and the I/O board.
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Hardware Maintenance Manual