Remove The Lcd Cover - Lenovo ThinkBook 14p Gen 3 Hardware Maintenance Manual

Figure 43. Remove the sensor rubber
Step 2. Disconnect the ambient light sensor board cable from the ambient light sensor board and then
remove the ambient light sensor board.
Figure 44. Remove the ambient light sensor board
Go to
https://support.lenovo.com/partslookup
replacement part:
Ambient light sensor (ALS) board

Remove the LCD cover

Make sure the following FRUs (CRUs) have been removed.
"Remove the LCD module" on page 47
58
Lenovo ThinkBook 14p Gen 3 Hardware Maintenance Manual
to look up the Lenovo part numbers of the following