Lenovo V14 Gen 4 i Hardware Maintenance Manual page 74

Figure 63. Remove two screws and then open the hinge
Screw specifications
M2.5 x L5
Step 2. Disconnect the touchpad board cable from the touchpad and disconnect cables connected to the
system board.
Figure 64. Disconnect the touchpad board cable and disconnect cables connected to the system board
Step 3. Remove four screws and then remove the system board with touchpad board cable.
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Hardware Maintenance Manual
Number of screws
2