Lenovo ThinkPad T480s WWAN Card Replacement

Introduction

Use this guide to replace the WWAN card in your Lenovo ThinkPad T480s laptop.

The WWAN (wireless wide area network) card allows you to connect to the internet without relying on a local Wi-Fi connection. If your computer has a WWAN card installed and you are having trouble using the internet without Wi-Fi, you may have a faulty WWAN card or antenna.

If you are having trouble accessing a local Wi-Fi connection, you may need to troubleshoot or replace the Wi-Fi card or WLAN antennas.

Before attempting a replacement, make sure to disable the internal battery, power down your device, and disconnect from any external power sources.

What you need

Step 1 Bottom Cover

Lenovo ThinkPad T480s WWAN Card Replacement, Bottom Cover: step 1, image 1 of 2

Lenovo ThinkPad T480s WWAN Card Replacement, Bottom Cover: step 1, image 2 of 2

Disable the battery, power down the device, and unplug the power adapter from your device before proceeding/beginning the guide.
Loosen the six captive screws with a Phillips #1 screwdriver.

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Step 2

Lenovo ThinkPad T480s WWAN Card Replacement: step 2, image 3 of 3

Remove the bottom cover with an opening tool.
Start from the top edge near the hinge and work your way along the edge until all of the clips are unsnapped.

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Step 3

Lift the bottom cover off.

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Step 4 WWAN Card

Lenovo ThinkPad T480s WWAN Card Replacement, WWAN Card: step 4, image 1 of 3

Lenovo ThinkPad T480s WWAN Card Replacement, WWAN Card: step 4, image 2 of 3

Lenovo ThinkPad T480s WWAN Card Replacement, WWAN Card: step 4, image 3 of 3

Flip the cardboard cover off of the WWAN card.
Using the spudger, release the coaxial antenna wires from the WWAN card.
When reassembling, reattach the blue wire on the left and the orange wire on the right.