I recommend you do a Hard Reset via Odin, download the latest DUA3 fw and flash by selecting BL, AP, CSC (No Home) and then tick Nand reset in Odin settings.I have a big problem charging my phone yesterday my battery would not charge when I plugged in the cable to charge my s8 it would shut down for no reason every second.
I had to turn off and erase the delvil cache to get the cable to work again I don't know what's going on but I think my battery is going to die
The problem doesn't happen again, I'll send you the log anyway.
If the battery problem starts again I'm certainly thinking of changing my phone for the rog phone 5 or buying a fan for my phone
So you will return to 100% stock, if the battery is not damaged you should fix.