my Fairphone 6 will randomly restart. sometimes theres randomly flashes of pink ?? too but my main problem is that for no reason my phone will just shut off. phone wont even be near dead either idk what to do :c
Mine shuts down all the time too, but only when I am wearing it in a side pocket of my trousers. I guess the moving of the fabric against the screen causes the phone to shut down??
Could that be the same in your case?
For me the problem was solved by using a Flip Case for the phone.