Hello
From what you said (running the diagnostics and learning that mic 3 is not working, also saying that people cannot hear you well), I am implying that indeed one of your microphones is broken. There are three different microphones on FP5 and also on FP4 and I believe which one is used depends on the settings (apps and hands-free mode might use a different microphone).
Fairphone website on warranty quite clearly suggests that you need to contact the seller in case of any problems.
Claiming your warranty. If you need to make a warranty claim, you should always approach the company you originally purchased the device from. The costs for any repairs, replacements and shipping, if applicable, will be arranged by that company.
I have tried to find the relevant information also in the legal hub, and while it is bit more vague, they seem to reiterate this information. I have also run it with their AI bot.
I understood that your two-year guarantee expired but I would still suggest contacting the seller, also because as you noted the FP customer support has - regrettably - not been responsive.
I don’t think I will be able to help you any further.
My suggestions:
- contact the seller
- try to contact FP via online chat
Alternatively you may reach out to some Swedish Angels based in Stockholm, 👼 The Fairphone Angels Program and Map (Local support by community members)