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Introduction

Use this guide to replace the USB card in a Lenovo ThinkPad T480s laptop.

The USB Card is used for extra storage and data backup and transfer. If your laptop does not recognize the USB Card, you might receive an error message and it will fail to load. The USB card may be corrupted. You may need to replace it but first do some troubleshooting.

Make sure to disable the internal battery, power down your device, and disconnect from any external power sources before you begin.

What you need

Step 1 Bottom Cover

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

Lenovo ThinkPad T480s USB 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 USB 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 Fan Assembly

Lenovo ThinkPad T480s USB Card Replacement, Fan Assembly: step 4, image 1 of 2

Lenovo ThinkPad T480s USB Card Replacement, Fan Assembly: step 4, image 2 of 2

Use the spudger to disconnect the fan cable from the motherboard.

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Step 5

Loosen the four captive screws attaching the fan assembly to the motherboard.
Do not attempt to remove the captive screws, as forcing them out may strip or damage them.

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Step 6

Lenovo ThinkPad T480s USB Card Replacement: step 6, image 3 of 3

Lift the fan assembly from the system and remove it.
Follow our thermal paste application guide before you replace the fan assembly and are ready to reassemble your device.