Fix Your Stuff Community Store

Free Shipping on Domestic Orders $75+

Lenovo ThinkPad L390 Wi-Fi Card Replacement

Introduction

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.

What you need

  1. Lenovo ThinkPad L390 Wi-Fi Card Replacement, Lower Case: step 1, image 1 of 2 Lenovo ThinkPad L390 Wi-Fi Card Replacement, Lower Case: step 1, image 2 of 2

    • 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.

    Edit

  2. Lenovo ThinkPad L390 Wi-Fi Card Replacement: step 2, image 1 of 2 Lenovo ThinkPad L390 Wi-Fi Card Replacement: step 2, image 2 of 2

    • 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.

    Edit

  4. Lenovo ThinkPad L390 Wi-Fi Card Replacement, Wi-Fi Card: step 3, image 1 of 1

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

    Edit

  5. Lenovo ThinkPad L390 Wi-Fi Card Replacement: step 4, image 1 of 2 Lenovo ThinkPad L390 Wi-Fi Card Replacement: step 4, image 2 of 2

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

    Edit

  6. Lenovo ThinkPad L390 Wi-Fi Card Replacement: step 5, image 1 of 1

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

    Edit
Conclusion

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.

Author

with 2 other contributors

Konstantin Nosov

Member since: 06/17/25

97 Reputation

1 Guide authored

Badges: 2

Team

Austin Community College, Team 22-2, Watkins Summer 2025 Member of Austin Community College, Team 22-2, Watkins Summer 2025

AUSTINCC-WATKINS-SU25S22G2

3 Members

6 Guides authored

0 Guide Comments

Add Comment

View Statistics:

Past 24 Hours: 2

Past 7 Days: 6

Past 30 Days: 36

All Time: 221