(Drain your battery to zero. Again turn ON and drain fully. Now charge it to straight 100% without turning ON (slow charging preferred) Remove any phone case if any, to prevent heating while charging. )
But regarding the battery health, I'm not an expert for that. Draining battery beyond 30-20 is never preferred. I never do it. But this usually applies to continuous and habitual usages and in a long run.
If we drain it just for once and it is for a purpose, I would say no issues.
We take drugs, and everything have the side effects😊.
Please try to apply Safe Mode as well, to enable Safe Mode, by following the below:
- Press and hold the Power and Volume down buttons (left edge) until the 'Power off' prompt appears on the screen then release.
- Touch and hold Power off until the 'Safe mode' prompt appears then release.
- To confirm, tap Safe mode.
And if remains please share your device logs, to send the device logs, please follow the below:
Press and hold Samsung members Icon > Then tap on Error reports > Select category of your report > Make sure that "Send Log Data" is selected to help resolve your inquire > Describe your problem in details > Change the frequency to whatever you prefer > Then send it.
If the issue continues, please bring the device to a Samsung Service Center.