13. Turn the computer over again. Reconnect the ac power adapter and all cables.
Installing and replacing the wireless WAN card
Before you start, print these instructions.
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.
To replace or install the wireless WAN card, do 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 71.
4.Loosen the screws on the memory slot cover 1 , then remove the cover
2.