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SIM connector board
NOTE: This section applies only to computer models equipped with a WWAN module.
Description Spare part number
SIM connector board 486252-001
Before removing the SIM connector board, 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 47).
5. Remove the following:
a. Hard drive (see
Hard drive on page 53)
b. Optical drive (see
Optical drive on page 56)
c. Keyboard (see
Keyboard on page 61)
d. Switch cover (see
Switch cover on page 66)
e. Display assembly (see
Display assembly on page 75)
f. Top cover (see
Top cover on page 81)
g. Rear cover (see
Rear cover on page 92)
Remove the SIM connector board:
1. Remove the two Phillips PM2.5×5.0 screws (1) that secure the SIM connector board to the base
enclosure.
2. Lift the left side of the SIM connector board (2) to disconnect it from the system board.
94 Chapter 4 Removal and replacement procedures