KonradWelenc , via OnePlus 8 , May 17, 2021 : Hi guys, I have problem with my phone. One plus 8, android 11. Sometimes system crash and my phone is not responding. Then I have to turn it on again. There will also be times when the system error shows up. This is annoying. Tried factory reset, did not help. Any suggestions as to what could be the cause? The problem has been around for a long time, with varying frequency.