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SIM
NOTE: This section applies only to computer models with WWAN capability.
NOTE: If there is a SIM inserted in the SIM slot, it must be removed before disassembling the
computer. Be sure that the SIM is reinserted in the SIM slot after reassembling the computer.
Before removing the SIM, 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).
Remove the SIM:
1. Position the computer upside-down with the battery bay toward you.
2. Press in on the SIM (1). (The module is partially ejected from the SIM slot.)
3. Remove the SIM (2) from the SIM slot.
Reverse this procedure to install the SIM.
48 Chapter 4 Removal and replacement procedures