I recently (under 2 weeks) got my first Fairphone (FP 3+) and realized after a while that there is a continuous hissing sound in the background when I use any audio. This occurs for YouTube, Spotify, VoIP, etc., and on wired headphones as well as on speaker. I tried it for three different headphones, one of which being the official FP headphones but the problem remains. Unfortunately, I do not have any Bluetooth speaker/headphone to test for that option. It immediately stops when I stop playing music but remains when I continue a video without sound.
I looked through the forum but could not find a recent thread with the exact same problem, only some older ones, not 100% incurring the same problem. I also already tried FP’s online fixing tool and contacted the support as well as an “angel” in the region closest to me.
Since it happens on both outlets, it might rather be a software problem than a hardware problem, but I really do not know. Do you have any ideas about what I can/should do?
Thanks for the help!