Hi guys. My device is op3 bought from india. I was having this problem of Severe random restart and sleep of death after a few days updating to oreo. I have tried all kind of room oos 5 , z unleashed, rr 6 rom, Omni rom from Oreo builds. They all made problem. I reverted back to oos 4.5 I was still facing same problem but less severe. Tried vortex carbide, aospa, Los but same problem but only sometimes. I tried hard brick recovery by msmdownloadtool but no result.
Then I installed multirom 33 from xda and oos 4.5 and sultan xda LOS 14.1 together. Suddenly I was facing no problem in sultan xda Los. So I just wiped everything and now using sultan xda as primary room without uninstalling multirom and multirom twrp. Now for two days it's running fine.
I was thinking that this is hardware issue, but now it seems that it's software issue.
But I am not a Dev so can someone tell me in software side what are things cannot be solved by msmdownloadtool?? I want to use oos but I am stuck with sultan xda los14.1