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Sennheiser Momentum 4 I/O Board Replacement

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  1. Sennheiser Momentum 4 I/O Board Replacement, I/O Board: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • On the right ear piece, insert an opening tool into the gap between the ear pad and the driver housing.

    • Gently pry the ear pad away from the driver housing until the ear pad fully releases.

    • Remove the right ear pad.

  2. Sennheiser Momentum 4 I/O Board Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Use a Phillips #00 screwdriver to remove four 6.5mm screws that secure the right driver housing.

  3. Sennheiser Momentum 4 I/O Board Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Insert a spudger into the seam between the driver housing and chassis.

    • Gently pry the driver housing up and out of the chassis, with care not to strain the connected cables.

  4. Sennheiser Momentum 4 I/O Board Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Sennheiser Momentum 4 I/O Board Replacement: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Flip up the three black ZIF locking flaps that secure the three bronze ribbon cables.

    • Disconnect all three ribbon cables.

  5. Sennheiser Momentum 4 I/O Board Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Sennheiser Momentum 4 I/O Board Replacement: crwdns2935265:05crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use tweezers to remove the plastic covering surrounding the audio jack and charging port.

  6. Sennheiser Momentum 4 I/O Board Replacement: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Break the adhesive securing the rubber audio jack/power housing.

  7. Sennheiser Momentum 4 I/O Board Replacement: crwdns2935265:07crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Sennheiser Momentum 4 I/O Board Replacement: crwdns2935265:07crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use a Phillips #00 screwdriver to remove the two black 1.4 mm screws that secure the I/O board.

    • Lift the I/O board up and out.

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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.

Madolyn Mueske

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Western Carolina University, Team 1-4, Virtue Spring 2025 crwdns2935289:0Western Carolina University, Team 1-4, Virtue Spring 2025crwdne2935289:0

WCU-VIRTUE-S25S1G4

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