Remove The Wi-Fi Card - Lenovo Legion S7 16IAH7 Hardware Maintenance Manual

Figure 8. Disconnect the battery pack cable
Step 2. Remove four screws. Then remove the battery pack.
Figure 9. Remove the battery pack
Screw specifications
M2.5 x L3.5
Go to
https://support.lenovo.com/partslookup
replacement part:
Battery pack

Remove the Wi-Fi card

Make sure the following FRUs (or CRUs) have been removed.
32
Lenovo Legion S7 (16", 7) Hardware Maintenance Manual
Number of screws
4
to look up the Lenovo part numbers of the following