Probably started about 4/ 5 months ago, my phone started to randomly crash. Sometimes when using it. Other times it would do it when not being used.
What tends to happen is the phone freezes, screen goes black. Then it vibrates and restarts, taking an age to start sometimes and every now and then the one ui will do its app optimisation thing.
On occasion, random apps will start to crash before the full crash occurs. I.e I'll be on Instagram or on chrome (or literally any other app), and it'll close suddenly and not repoen. I try to open anything else and the same until suddenly full phone crash & restart. I also have had it crash on the restart itself where only the samsung logo appears and it doesn't continue to load (where the secured by knox logo then appears) and I have have to force it off with the button presses. There appears to be no pattern to the crashes and i can go days or weeks without issue or I'll have multiple instances of this occurring over and over in just a few days
The phones still in warranty and I've had Samsung out to look at it but couldn't find any faults with it. Even the device care app says "your phone restarted recently" but doesn't list any faults or issues whatsoever. None of the "tests" ever find an issue. It is doing my head in as I cannot figure out what the issue is or what's causing it.
Everything I have tried:
Apps are up to date (both stores including making sure android Web viewer and google play services updated as i have seen this mentioned lots)
Factory resets have been done many times
Cache clearing in the bootloader options
Safe mode
System updates applied
Have also tried not installing any additional apps other than stock, still occurs.
I've ensured that the restart occasionally option is turned off (and still is)
Gone through the diagnostic stuff on device care with no issues showing
Had and engineer out, found no fault on tests so didn't do anything although on the phone they said it was likely a main board issue.
Starting to lose my patience with, the otherwise lovely, phone.
