iFixit - Answers With Device "Sennheiser Momentum 4"

Sennheiser momentum 4: Why do I have static noise in my left earcup?

Tue, 20 Jan 2026 05:40:33 -0700

Since I got these headphones I fell in love with with the brilliant sound as well as comfort. But my left earcup started to make some static noise. It started a month ago when my headphones randomly turned off by them selfs.(they still do sometimes) Has anyone an idea what i could do to fix them?(Yes i tried uninstalling everything and setting them back but it didnt work)

⟐ Commented January 20, 2026 at 5:40 MST

Sennheiser Momentum 4: Left earcup suddenly stopped working

Wed, 13 May 2026 04:42:45 -0700

The left earcup of my Momentum 4 suddenly stopped working. Did anyone had this issue? If so, what was the fix?

⟐ Answered May 13, 2026 at 4:42 MST

Sennheiser Momentum 4: Headphones randomly turn off

Wed, 11 Feb 2026 21:59:42 -0700

The headphones would turn off at random times. Sometimes, all you have to do is press the button to turn them on. Other times, you have to press the right earcup against something and then turn them on. That's also how they turn on when charging.

Tried:

Factory reset.

Disabling different features in the app.

Dry it with a hair dryer.

⟐ Commented February 11, 2026 at 21:59 MST

Sennheiser Momentum 4: How to get the wire through the swivel?

Mon, 06 Apr 2026 13:51:56 -0700

This is my very first repair and I know exactly what is wrong but I have to route a wire from the left cup to the right and cannot for the life of me fit a new wire through, even a small ethernet one. Is there some kind of trick to this or am I cooked?

Any help is appreciated

Sennheiser Momentum 4: Headphones won’t pair

Fri, 07 Nov 2025 14:22:17 -0700

Holding down on button won’t make pair sound or device won’t come up on Bluetooth also headphones only turn on when right ear pressed and sometimes disconnects randomly