Lenovo IdeaPad Flex 5i Chromebook Plus Hardware Maintenance Manual page 45

"Remove the lower case" on page 28
Step 1. Disconnect the battery pack cable from the system board. Remove one screw, and then remove
the antenna cables from the Wi-Fi card.
Figure 20. Disconnect cables and remove one screw
Screw specifications
M2 x L2
Step 2. Remove the Wi-Fi card.
Figure 21. Remove the Wi-Fi card
Go to
https://support.lenovo.com/partslookup
replacement part:
Wi-Fi card
Number of screws
1
to look up the Lenovo part numbers of the following
.
Chapter 4 Removing a FRU or CRU
39