Replacing A Wireless Wan Card - Lenovo ThinkPad Edge E440 User Manual

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.
Your computer might be equipped with a wireless WAN card. To replace the wireless WAN card, doing
the following:
1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait
three to five 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 69.
4. Loosen the screw 1 , and then remove the cover 2 .
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Chapter 6 Replacing devices
95