Battery Drain so Fast After Update

Hello, my phone battery drain so fast after the latest update, did anyone know how to fix this issue
thanks
android system is taking so much juice from the battery, this never happen before update
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after newest update android system still draining my battery so fast, before update i can make 6-7 hours SOT, but now 3 hours is max SOT, please someone help me
Backup ur data, factory reset, calibrate ur battery phone (discharge to 0% till it off, try to power on ur phone till it cant show nothing on screen, charge to 100%, power on phone) if after power on it shows 99% or lower than charge to 100%. Repeat all steps above 6-10 times.
It won't make a difference. I've already done that. I've gone back to A11
It is. Better than on a11 after calibration. And during playing my brightness was maxed out.
But it did the trick. During playing my brightness was maxed out, other daily usage was auto brightness and auto hz screen.
Not for me it didn't. On A11 I was getting over 3 hours SOT from 100% - 90%
On A12 I got barley 1.5 Hours SOT
i've tried this, but not working bro, i dont know why android system drain so much battery, this happen after update .226 & not fix after newest update .229
im still on android 11 bro, this issue happen after im updating .226 & now im at .229
im so regret buying this kind of flagship phone, first motherboard replace because wifi not work, now battery problem
we need a solution asus
.229 isn't a good update. Best update for now is .226
Back to .226 firmware any thing it's possible