ChillyRideIt won't make a difference. I've already done that. I've gone back to A11
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.