Wired earplug doesn't work on my FP3

[urs_lesse]

Fairphone asks everyone with an FP3 issue to contact Fairphone Support about it:

What is/was the "minor issue about the audio feature of the phone" "in less than 1% of the phones"?

Hi all, getting back to you on this topic. To make it clear: It is a timing issue in the firmware of the software that controls the Smart Audio Amp in the phone, and we are correcting it in a software release in Q1. I hope this provides some clarity for those of you experiencing audio issues with your Fairphone 3. Also, please make sure to contact Customer support anytime you are experiencing a problem. All the information is logged and provides valuable intel for improving the product.

Please note that this does not necessarily mean that your issue is caused by the problem described above. I just linked to it to underline that Fairphone wants to hear of such problems to find out about them and (hopefully) their causes.

Contact form can be found here: https://support.fairphone.com/hc/en-us/requests/new

I recommend that you specify the exact type of your wired earplug in your request.