I bought a brand new Fairphone 3 around 2 weeks ago. It sometimes randomly restarted but that wasn’t a big issue until now. A few hours ago, however, I encountered a bunch of problems. I was using the headphone jack to connect it to a big speaker, first it only used the phone speakers, then it crashed, after which it worked fine. We then had a very shaky ride where it was shook a bunch too, after which it crashed and kept showing the same behavior: it would show the first “fairphone - powered by android” screen, fail and reboot again, that time successfully. A few seconds after booting successfully though, it would crash again and the cycle would continue like this. I managed to turn it off completely within the few seconds it stayed on the android log-in screen and decided to try again later. The issue persisted, so I plugged it in to charge, which prevented it from booting successfully completely. I took out the SIM card (and, as necessary, the battery for like a minute) and tried recovery mode to no avail. I plugged it in again, it booted up successfully once (and crashed again) and since then won’t show any lifesigns at all. I currently have it plugged in and waiting.
The internals looked fine on quick inspection, and the battery is not bloated at all. I’m kind of at a loss and would like to know if I have any options apart from a factory reset (which is kind of difficult right now because, well, it won’t turn on at all).
I appreciate any help you could give me, as I haven’t found any information dealing with this kinda issue.