SIM
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 38).
Remove the SIM:
1.Press in on the SIM (1) to release it from the SIM slot.
2.Remove the SIM (2) from the SIM slot.
Install the SIM by inserting it into the SIM slot until you hear a click.
Component replacement procedures 39