Battery drain issue after one ui 6.1 update

[Sasa1215]

Welcome back,I'm facing a battery drain issue after the one ui 6.1 update,to tell you the truth,almost all of the people are facing the battery drain issue after the one ui 6.1 update,but I don't want to downgrade

I Don't want to downgrade for a reason,I saw a video of how to downgrade to one ui 5.1,it's simple,but a lot of people are facing problems when downgrading,some are saying the phone can't boot up,some are saying Odin can't verify that the phone is connected and some are saying that they faced more issues after the downgrade process.

If you have any solution's,please comment below.

[أبوسرور١٢٢]

You can't downgrade if the bootloader version on your current firmware is different from the older firmware 

You can clear cache partition & repair apps through recovery mode (Google it) or download Good Guardian app to optimize your phone 

[Sasa1215]

what will the repair apps do in recovery mode?

[User20000]

I am facing the same issue suddenly started heating up and battery draining, may be after the upgrade