Usb-c not recognizing 3.5 mm adapter after update to android 15

Help Fairphone 5
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1

Hello,

As the title says,

After updating to Android 15, my FP5 no longer recognizes my previously working USB-C to 3.5 mm headphone adapter.

Here is what I have tried so far, in order, none of which worked:

  • Cleaned the charging port

  • Changed the auto-switch setting in Developer Options

  • Tested multiple adapters with confirmed DACs, not the Fairphone one

  • Tested multiple USB-C headphones

  • Installed a new charging port

After installing a new charging port today and still having the same issue, I am fairly certain this is related to the software update. I am quite frustrated at this point.

Do you know if there is anything else I could try that I may have missed?

Thanks.

EDIT: The phone does recognize that I plug something into the port. In “connected devices“ it does pop up when I plug it in. It also says that the connected device is charging, which is odd.

2

Hi
Installing a new port does not exclude the possibility of hardware issues but of course we should not limit ourselves and check all the other options.

I do not think it is a widespread bug connected with the software update (meaning everyone is affected), but certain settings on a unique phone might of course produce an unwelcomed effect.

My suggestions:

  • more troubleshooting - is data transfer possible?
  • there is a dedicated test for accessories in MyFairphone App, you can also get it suggested using the self-repair portal
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3

Hello Meaghan,

Thank you for your reply.

I just tried the internal testtool.
My fp5 does not detect anything when testing “digital accessory“ or “Analog headset“

When testing “USB 3.0“ it also fails:
Plug Status1: OK
USB 3.0: NOK
Plug Status2: NOK
USB 3.0: NOK

Windows does at first recognize the device, but directly after that says the device has caused a malfunction and is disconnected. So data transfer is also not possible.

This makes me think it could also be a hardware issue.

Thank you.

4

When my USB-C port failed, I have received similar results: Plug Status1: OK; USB 3.0: NOK, PlugStatus2: NOK, Usb3.0: NOK

I also could not use the adapter and data transfer was not working.

But, in my case, swapping the port fixed that… So I am not sure what to advise - sending the phone in? checking the connectors?

@urs_lesse told me to check the data transfer cable which is next to the display - perhaps you could do it as well? I believe it was this one

image
image637×358 49.9 KB

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5

Are you sure that whatever you want to connect to your FP is plugged into the USB-C adapter FIRST and THEN the adapter into the Phone? That order is mandatory!

Otherwise the processor within the plug has no clue which operating mode it should request from the phone and usually charging will be activated.

Regards Philipp

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6

If you do, I would recommend to keep the display cable (next to it) connected as it is (don’t unplug that one unless really necessary). The data transfer cable (circled red by meaghan) should be significantly less risky to unplug as it is in more fixed position.

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7

Great news! I just took apart my phone and re-seated both sides of the data cable and the port is recognizing my headphones again!

I have not checked usb connectivity with a computer again, but I’m assuming that will also work again now.

Guess I have a spare charge port now :’)

Thanks for the help

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