Remove The System Board And Heat Sink (For Dummy Fan Models) - Lenovo 14e Chromebook Gen 3 Hardware Maintenance Manual

Figure 19. Disconnect the cables and remove the speaker cable from the cable guide
Step 2. Disconnect the Wi-Fi antenna cables from the Wi-Fi card and remove the white antenna cable from
the cable guide. Then, remove the Wi-Fi antennas.
Figure 20. Disconnect the antennas cables and remove the Wi-Fi antennas from the cable guide
Go to
https://support.lenovo.com/partslookup
replacement part:
Wi-Fi antenna

Remove the system board and heat sink (for dummy fan models)

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 30
"Remove the Wi-Fi card" on page 32
"Remove the right I/O board bracket" on page 33
to look up the Lenovo part numbers of the following
.
Chapter 5 Removing a FRU or CRU
43