Earbuds connected through USB-C connect but arent able to be used as sound output

Help Fairphone 5
1

Hello, hoping for some help regarding my earbuds not being recognized through the adapter to my Fairphone 5.

I have my Moondrop Chu 2 IEMs (which work on my pc without adapter) along with an old pair of regular 3.5 jack wired headphones and i have tested both through a cheap non-brand DAC usb-c to 3.5mm jack adapter and also Fairphones very own new USB-c - 3.5mm DAC adapter, but no combination of the 2 earbuds or adapters work.

When i connect them the only change on my phone seems to be that it recognizes a connected USB under the “other devices” tab of “connected devices” settings and attempts to charge that USB. I cannot however use that connected USB device as a sound option.

When i change the sound level, press the dots at the bottom of the appeared sound bar, then press on “sound plays on: this phone”, there is simply no other option. If i then press on “connect a device” it goes to “connected devices settings” where there are only my bluetooth devices and the one connected USB device under “other devices”, when i press on that no change appears other than that i see the line “USB controlled by connected device”, which i in this case think must be my earbuds, and a bunch of different USB data transfer options which are greyed out, but i dont know what that means and i cant change the setting, it just says “unable to change setting”.

I assume the problem must be with the Fairphone 5 because the two earbuds work both with my laptop and i’ve tried two adapters, one of which bieng fairphones own, and it would be weird for both to malfunction. Does anyone know what i can do or what is wrong and in need of repair? there are no other issues with the USB-c port or the phone. Thanks.

2

Hello and welcome to the forum

To be absolutely sure, could you try different headphones?
Plus, there are two similar adapters sold by Fairphone

And

Could you please confirm that you have the latter?

3

Hello, thanks for helping. Yes it is the latter mini-jack adapter that I have tried.

1 Like
4

Just purely coincidentally I decided to test my headphones and my adapter and it failed as well.
But the data transfer seems not be working either so I will be double checking my usb port tomorrow for any failure

5

Alright. Please check back with whether or not it’s a hardware issue for you, I’m hoping it’s a system software issue that’s going to be solved with an update maybe?

6

hello, in my case it is a 99% hardware/connector issue as it used to work just fine. plus it is not only audio but data transfer fail.

Edited to say that I submitted a support ticket. I opened the phone, checked all the connectors, and performed the internal testing with USB3.0 failing. It was pretty straight forward and was given the option to send a phone for repair but I would rather avoid it. I hope I will be able to solve it just by swapping the USB port.