I have used Samsung Galaxy A20,and I have use the *0228#,. My battery is so weak ,The mobile shuts down only when my battery is at 30%. Sometimes the battery automatically runs out at night
Dear Samsung Member,
Greetings from Samsung Customer Support!
We apologize for the inconvenience caused to you and to resolve "battery drainage" issue kindly follow the below given step:-
>>>Battery optimization:- Settings > Select Device Maintenance/Device Care>Optimize>Optimize all options like Battery, Storage and Memory
For more information on battery drainage please click on the link below:-
If the issue still persist, kindly register your concern in Samsung Members app (Samsung Members app > Get help > Feedback > Error report/ask question). Kindly send us the screenshot (which apps are consuming most of the battery).
Note: Please send device log files within 15 minutes of issue occurrence along with the exact issue details.
Thank you for writing to Samsung.
Samsung Customer Support