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The Wi-Fi card is a component that is responsible for connecting your device to the internet. This guide is made to support you with information needed to find and replace the broken Wi-Fi card. If you are experiencing a problem in your wireless connection or it feels slower it might be worth considering replacing your Wi-Fi card.

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crwdns2931653:01crwdne2931653:0 Lower Case

Lenovo ThinkPad L390 Wi-Fi Card Replacement, Lower Case: crwdns2935265:01crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

Lenovo ThinkPad L390 Wi-Fi Card Replacement, Lower Case: crwdns2935265:01crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

Before you begin, discharge your laptop battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured. Lay the device down with the lower case facing up.
Power off your laptop and disconnect the charger and any peripheries before beginning disassembly.
Unscrew the nine 5 mm Phillips #00 screws that secure the lower case.

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Lenovo ThinkPad L390 Wi-Fi Card Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

Lenovo ThinkPad L390 Wi-Fi Card Replacement: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

Insert an opening tool in the gap between the lower case and the chassis.
Pry around the entire perimeter of the lower case until it fully releases.
Lift the lower case up and off.

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crwdns2931653:03crwdne2931653:0 Wi-Fi Card

Lenovo ThinkPad L390 Wi-Fi Card Replacement, Wi-Fi Card: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

Remove the single 5 mm Phillips screw that secures the Wi-Fi card.

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Lenovo ThinkPad L390 Wi-Fi Card Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

Lenovo ThinkPad L390 Wi-Fi Card Replacement: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

Use the pointed end of a spudger to lift and disconnect the two Wi-Fi card coaxial cables.

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Lenovo ThinkPad L390 Wi-Fi Card Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

Gently pull the Wi-Fi card directly out of its socket.

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To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting or ask our Answers community for help.