Hello @Everyone,
This exact problem appeared for me like a week ago. Phone randomly froze, went into rebooting loop, started repairing apps, then turned on, sometimes it was working for a few hours, but sometimes it foze when after unlocking when displaying "the phone is starting" and then again boot loop.... I managed to back up everything, and also clear cache (which actually made it much worse, the phone became basically unusable restarting like 50 times).
BUT!
MY SOLUTION:
I took out all sims, booted into safe mode, and the phone was working normally. So I suspected some apps, I uninstalled all Good guardians, and some other Samsung SW, cleared cache of all apps manually, set some apps to best battery, and what is the most imporatnt, deep clean samsung browser (I had like 2gb of bull**** saved from webs on my device, all to cookies, web data). I booted phone back to normal mode, updated google play services. I didnt put sim back at first, just to test it, but the phone was doing good. Performance improved, responivness much better. I put sim back and for now everything seems back to normal. The phone is also running kuch cooler and I observe some battery gain too. I guess the phone just needed a deep cleaning, and I really wanted to avoid doing factory reset. Also when u do factory reset and load all your data back via smartswitch I bet the corrupted ***** is transferred too.
Now I hope the problem wont come back, but I have a hope in 6.1.1 update that started rooling out already.
I hope you can all fix this annoying problem too, but if your phone was working flawlessly before its 99% a corruption in some sw.
