upgrade & replacement
2
. Put the CPU cover on and secure 3 screws (M2*4L(K)) to fix it.
Install battery module.
Put the battery module into its compartment.
WLAN Module Replacement
W L A N
This slot usually has Wireless LAN module when leaving the factory, this slot is
for optional system upgrade
.
Replacing WLAN module
Remove battery module
2.
Turn the notebook over. Unlock and hold the latch, and remove the battery .
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