Remove The Wlan Card - Lenovo Chromebook C340-15 Hardware Maintenance Manual

Figure 4. Disconnect the cable from the system board and remove four screws
Screw specification
M2.0 x 4.0 mm
Step 2. Remove the battery pack.
Figure 5. Remove the battery pack
Go to
https://support.lenovo.com/partslookup
replacement part:
Battery pack

Remove the WLAN card

Make sure the following FRU (or CRU) have been removed.
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Lenovo Chromebook C340-15 Hardware Maintenance Manual
Number of screws
4
to look up the Lenovo part numbers of the following