User Manual

2. Turn off the computer and disconnect the computer from ac power and all connected cables. Then,
close the computer display.
3. Remove the base cover assembly. See “Base cover assembly (for T490 and P43s only)” on page 52 or
“Base cover assembly (for T590 and P53s only)” on page 54.
4. Remove the wireless-WAN card by doing the following:
Note: A Mylar film might cover the wireless-WAN card. To access the wireless-WAN card, open the film
first.
a. Hold the cable connector with your fingers and gently disconnect each cable from the wireless-WAN
card
1 . Then, remove the screw that secures the wireless-WAN card 2 . The card is released from
the secured position and pivots upward.
b. Carefully remove the wireless-WAN card out of the slot
3 .
Chapter 7. CRU replacement 63