Remove The Wi-Fi Card - Lenovo IdeaPad S540-14 Series Hardware Maintenance Manual

Figure 7. Take out the battery pack

Remove the Wi-Fi card

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 31
"Remove the battery pack" on page 32
Step 1. Disconnect the cable of the I/O board as shown.
Figure 8. Disconnect the cable
Step 2. Remove the Wi-Fi card sponge.
34
Hardware Maintenance Manual