iFixit - Answers With Device "Sennheiser HD 4.50"

sennheiser hd 4.50: broken female jack, how to fix

Fri, 18 Jul 2025 02:05:23 -0700

The female jack on my headphones are mostly broken. Most of the time there is no sound but if i move the cord to the right place there is quiet sound in either ear, or rarely normal sound in both ears. (if i hold it there) Is there any way I can fix the jack in these headphones so that it works properly? It is NOT the cord/male jack with the problem, I tried 3 different cords and they all have the same problem in these headphones and not elsewhere

(also if questions dont show device its a sennheiser hd 4.50)

⟐ Commented July 18, 2025 at 2:05 MST

Sennheiser HD 4.50: power button doesnt go in anymore, unable to turn on

Sun, 12 Apr 2026 14:49:49 -0700

After years of regular use and without dropping the headset, the power button no longer works and I have tried opening it up and haven't found how to fix it, any help would be greatly appreciated.

⟐ Commented April 12, 2026 at 14:49 MST

Sennheiser HD 4.50: Broken swivel on ear

Fri, 26 May 2023 22:41:54 -0700

Hd 450 bt. Broken ear swivel and cable has become longer so can’t glue it how do I get the cable back into the headband!

⟐ Answered May 26, 2023 at 22:41 MST

Sennheiser HD 4.50: The adjustable band is loose.

Thu, 07 Dec 2023 16:16:52 -0700

I was wondering how I might solve the headband adjustment being loose. I searched online about it, but not really much is said. I don't want to take it apart only to find that its not something that is easily fixed and have a mess at the end.

This is pulled from https://assets.sennheiser.com/global-dow...

⟐ Commented December 07, 2023 at 16:16 MST

Sennheiser HD 4.50: My headphones refuse to stay connected for more than a few seconds

Tue, 23 Apr 2024 04:42:31 -0700

This morning they were working perfectly, and suddenly they just refused to connect to my phone or laptop. I've tried the software update but that didn't help, and it won't reset either.

⟐ Answered April 23, 2024 at 4:42 MST

Sennheiser HD 4.50: Headphones have stopped charging

Mon, 12 Dec 2022 06:36:16 -0700

I tried to recharge my headphones yesterday and noticed the red light would not come on that indicates they are charging

I tried different usb c cables and plugs. I also cleaned the usb c port on the headphones in case there was a connection issue

The red light will come on for no more than 20 seconds before going out again.

Each usb c cable and plug I try is working with other devices so I'm sure it's not an issue with them.

I've had no problems charging before yesterday and had the headphones for about 2 years

⟐ Answered December 12, 2022 at 6:36 MST

Sennheiser HD 4.50: My headphones have so many issues

Mon, 25 Sep 2023 14:56:00 -0700

I just got these headphones and there are so many problems with it and I’m not sure what to do.

First one is I keep clicking connect then it says connected and disconnecteds and when I click connect again it says connect and again and again never saying disconnected.

Also when I leave my headphones ( complexly off ) the battery goes from 100 percent to 0 very quickly and my battery should be brand new ?

When I charge it that fixes it then when it goes to 80 percent the problem appears for some strange reason but I’m sure you may know about this type of problem I hope I’m not the only one ?

I’ve never over charged or over used these headphones and there brand new and I still have the box please me guidance.

Also if possible I don’t want to buy anything as I don’t have money ( these headphones were a gift from my farther bought directly from you ) “not used”