3.Disconnect all external devices from the computer.
4.Remove the bottom cover (see Bottom cover on page 33), and then remove the following components:
a.Battery (see Battery on page 35)
b.Fan (see Fan on page 39)
c.System board (see System board on page 62)
Remove the WLAN antenna:
1.Detach the WLAN antenna transceivers (1) from the top cover. (The WLAN antenna transceivers are attached to the top cover with
2.Release the WLAN antenna cables from the clips (2) and routing channel built into the top cover.
3.Remove the WLAN antenna cables and transceivers (3) from the top cover.
Reverse this procedure to install the WLAN antenna.
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