Remove The System Board - Lenovo 100e Chromebook Gen 4 Hardware Maintenance Manual

Figure 22. Disconnect and remove the touchpad cable
Go to https://support.lenovo.com/partslookup
replacement part:
Touchpad cable

Remove the system board

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 35
"Remove the Wi-Fi card" on page 38
"Remove the Type-C bracket" on page 41
Step 1. Disconnect the EDP cable, I/O board cables, speakers' cable, touchpad cable, and keyboard cable
from the system board.
to look up the Lenovo part numbers of the following
.
Chapter 5 Removing a FRU or CRU
43