Battery percentage shows 0 all the time

[Naman10]

After updating my samsung galaxy s21 ultra to One UI 4.0  My Battery percentage shows 0% all the time even Its fully charge.

Looking forward for the answer

Thank you.

[GG2]

Did you try clearing the cache partition in recovery?

[RedDogRabbit]

Try this, Settings > Developer Options (if it's not enabled, go to Settings >About Phone > Software Information and click on the Build Number 7 times to enable Dev Options).

In Developer Options, Search for "Demo Mode" & Toggle it On & OFF.

Reboot & check to see if you have the Battery Percentage now 🤞

If you don't, then I think that the only solution is to Backup your phone with Smart Switch & Factory Reset.

Your phone will be as it was when you first received it, so know your passwords ⚠️ 

[Melodine]

Thanks. This really help alot. Battery percentage is finally showing 

[RedDogRabbit]

Great to hear that it's a solution for you 👍

[Blessing19]

This worked thank you

[RedDogRabbit]

Great to hear 👍🏻

[Georgine]

Hi Naman10, Can you please confirm if it is still showing 0% when connected to a charger?

[NakedBacon]

I have the same problem. Did the developer options, turned on and off indicator and rebooted my phone 5 times. Nothing seems to get it back. Not willing to factory reset

[Georgine]

Hi, we request you to soft reset the device and check if the issue still remains.

Press and hold the Volume down and power button at the same time for 10 sec until the device restarts.