Reverse this procedure to install the WWAN module.
Switch cover
Description Spare part number
Switch cover 446401-001
Before removing the switch cover, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC Adapter from the computer.
4.
Remove the battery (see
Battery on page 42).
5.
Remove the keyboard (see
Keyboard on page 57).
Remove the switch cover:
1.
Close the computer.
2.
Turn the computer upside down, with the rear panel toward you.
3. Remove the two Torx T8M2.5×11.0 screws (1) and the three Phillips PM2.0×2.0 screws (2) that
secure the switch cover to the computer.
4.
Turn the computer right-side up, with the front toward you.
5.
Open the computer as far as possible.
6. Disconnect the power button board cable (1) from the system board.
7.
Release the ZIF connector to which the LED board cable is attached, and disconnect the LED board
cable (2) from the system board.
64 Chapter 4 Removal and replacement procedures