1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the following components:
a. Service door (see Service door on page 37).
b. Remove the battery (see Battery on page 38)
c. Hard drive (see Hard drive on page 39).
d. Solid state drive (see Solid-state drive (select products only) on page 41).
e. WWAN module (see WWAN module (select products only) on page 42).
Remove the WLAN module:
1. Disconnect the two cables (1).
2. Remove 1 M 2.0x3L P1 screw (2).
3. Remove the bracket (3), and then remove the WLAN module.
Reverse this procedure to install the WLAN module.
Component replacement procedures 45
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