Started yesterday...no reason no update took place. Phone is turning off an on about 10-20 times a day since last night. Did soft reset than did the up, Bixby, power button and delete cashe...updated pro and profile. STILL doing it...anyone have this happen and I'd so how to fix?! Thanks in advance.
What is the model code for your device?
Have you ensured that you have Auto Restart disabled?
My galaxy note 9 was having that issue, I tried a hard reset and resetting all of the settings and it worked for about 4 days until it started again. I eventually had to take it to go get it fixed.