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Edifier W820NB Plus Motherboard Replacement

Introduction

If the Edifier W820NB Plus will not connect despite being on and in pairing mode, a broken motherboard may be the issue. The motherboard is the component that controls most functions of the headphones including connecting to other devices. Make sure to try connecting to a few different devices before resorting to motherboard replacement.

This guide requires soldering. If you're unfamiliar with soldering, review the How to Solder and Desolder Connections guide and take appropriate precautions before beginning.

What you need

  1. Edifier W820NB Plus Motherboard Replacement, Ear Pads: step 1, image 1 of 1

    • Start with the headphones face up and the earpads visible.

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  2. Edifier W820NB Plus Motherboard Replacement: step 2, image 1 of 2 Edifier W820NB Plus Motherboard Replacement: step 2, image 2 of 2

    • Hold the driver housing in one hand and insert an opening tool into the seam between the earpad and driver housing.

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  3. Edifier W820NB Plus Motherboard Replacement: step 3, image 1 of 2 Edifier W820NB Plus Motherboard Replacement: step 3, image 2 of 2

    • With your inserted opening tool, pry around the perimeter of the ear pad until it fully releases.

    • Repeat this procedure for the other side if necessary.

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  4. Edifier W820NB Plus Motherboard Replacement: step 4, image 1 of 1

    • Repeat for the other side if necessary.

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  6. Edifier W820NB Plus Motherboard Replacement, Drivers: step 5, image 1 of 1

    • Identify the driver you wish to replace.

    • This guide will use the left driver as an example but the same steps can be mirrored when replacing or removing the right driver. The battery is under the left driver, while the motherboard and daughterboard are under the right driver.

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  7. Edifier W820NB Plus Motherboard Replacement: step 6, image 1 of 2 Edifier W820NB Plus Motherboard Replacement: step 6, image 2 of 2

    • Remove all five 5 mm Phillips #0 screws that secure the driver assembly.

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  8. Edifier W820NB Plus Motherboard Replacement: step 7, image 1 of 3 Edifier W820NB Plus Motherboard Replacement: step 7, image 2 of 3 Edifier W820NB Plus Motherboard Replacement: step 7, image 3 of 3

    • Note that the wires for the drivers are on the outermost edge. Try to avoid pushing or cutting them when taking the driver out.

    • Insert a Jimmy in the seam between the driver assembly and driver housing.

    • Rotate the Jimmy along the entire perimeter of the innermost edge to pry it out of place.

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  9. Edifier W820NB Plus Motherboard Replacement: step 8, image 1 of 2 Edifier W820NB Plus Motherboard Replacement: step 8, image 2 of 2

    • Gently remove the driver assembly from the rest of the headphone, with care not to strain the connected wire.

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  10. Edifier W820NB Plus Motherboard Replacement: step 9, image 1 of 2 Edifier W820NB Plus Motherboard Replacement: step 9, image 2 of 2

    • Skip this step if you are completing a battery replacement.

    • Repeat the procedure for the other driver if necessary.

    • Desolder the four driver connections from the motherboard.

    • Remove the driver assembly.

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  11. Edifier W820NB Plus Motherboard Replacement, Motherboard: step 10, image 1 of 2 Edifier W820NB Plus Motherboard Replacement, Motherboard: step 10, image 2 of 2

    • Peel off the black strip stuck to the top of the motherboard.

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  12. Edifier W820NB Plus Motherboard Replacement: step 11, image 1 of 3 Edifier W820NB Plus Motherboard Replacement: step 11, image 2 of 3 Edifier W820NB Plus Motherboard Replacement: step 11, image 3 of 3

    • Remove the four 2 mm screws that secure the motherboard with a Phillips #0 screwdriver.

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  13. Edifier W820NB Plus Motherboard Replacement: step 12, image 1 of 2 Edifier W820NB Plus Motherboard Replacement: step 12, image 2 of 2

    • Pull the motherboard out.

    • Desolder all motherboard connections.

    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 3 other contributors

Happy Zhang

Member since: 03/21/25

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Team

UMass Dartmouth, Team 2-7, Botvin Spring 2025 Member of UMass Dartmouth, Team 2-7, Botvin Spring 2025

UMASSD-BOTVIN-S25S2G7

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