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Replacing a wireless WAN card
Before you start, print these instructions.
Prerequisites for replacing or installing the wireless WAN card
DANGER
During electrical storms, do not connect the cable to or disconnect it from the telephone outlet
on the wall.
DANGER
Electric current from power, telephone, and communication cables is hazardous. To avoid shock
hazard, disconnect the cables before opening the cover of this slot.
Attention: Before you start installing a wireless WAN card, touch a metal table or a grounded metal object.
This action reduces any static electricity from your body. The static electricity could damage the card.
If your computer is equipped with a wireless WAN card, replace the card by doing the following:
1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait
three to ve minutes to let the computer cool.
2. Close the computer display, and turn the computer over.
3. Remove the battery. See “Replacing the battery” on page 67.
4. Loosen the screw 1 , and then remove the cover 2 .
92 User Guide