Remove The Touchpad Board Cable - Lenovo IdeaPad Pro 5 Hardware Maintenance Manual

Figure 11. Remove the I/O board cable
Go to
https://support.lenovo.com/partslookup
part:
I/O board cable

Remove the touchpad board cable

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 28
"Remove the battery pack" on page 29
Step 1. Peel back the keyboard FPC.
Figure 12. Peel back the keyboard FPC
Step 2. Remove the touchpad board cable from the system board and the touchpad board.
to look up the Lenovo part number of the following replacement
.
Chapter 4 Removing a FRU or CRU
33