Phone keeps turning itself off

[AnotherElk]

@b.grrrlie

I’ve had Fairphone 2 since summer 2017 (or was it 2016?) and I’ve had to replace the mic four times, this is my third battery

Warranty on the battery is 1 year.
Most Fairphone 2 batteries live longer, I guess, but that’s also depending on use and circumstances.

@b.grrrlie

As I’ve just replaced the mic and battery those shouldn’t be a part of the problem, so why does it turn itself off?

What exactly does it say in Settings - About phone - Build number?

Does it turn itself off, staying that way, or does it reboot?
In case of random reboots …

A little Guide to... Random Reboots

This collection of troubleshooting advice for random reboots was formerly the first post of this topic (please continue there if you have questions about the guide or want to share your experiences). I now made it into its own wiki topic and gave it the unique tag #rebootsguide to make it more visible (and hopefully to encourage people to keep it up to date). For troubleshooting reboots on FP2 you may also have a look at the official support pages and select → Fairphone 2 → phone reboots there. …