Fast charging stopped on S20 after security update

[vic007]

Fast charging not working after Aug security update. Had tried app reset preferences, reboot device. Went to recovery mode, done wipe cache partition. Nothing helps. Still shows 1hour 20 minutes to charge from 15%to 85%.

[RedDogRabbit]

Open the Samsung Members app & Click on Support > Phone Diagnostics & run the Diagnostics for Cable Charging. See if you get any error messages? 

No issues with Super Fast Charging on my S20 Ultra One UI V5.1 & August Security Patch OTA. 

Depending on the results of the Diagnostics, you can try a different Charging Block & USB cable.

The August Security Patch did NOT break Super Fast Charging. 

 

[vic007]

Thanks but already tried this with Samsung support. It shows normal battery.

[RedDogRabbit]

Tried what, different Charging Block & USB cable, or just the Diagnostics?

I assure you that it was not the update! 

[vic007]

Thanks, but I tried same charger and cable on my other S20, that one shows fast charging. I think it's my phone that is having issue.

[RedDogRabbit]

Visit a Samsung Service Centre to get it checked out by a tech then. 

https://www.samsung.com/ca/support/service-center/

[Helenna]

Thank you RedDogRabbit.

Hi, we appreciate your efforts that you have tried all the necessary troubleshooting steps.

As suggested by the RedDogRabbit please visit the nearest service centre and get the device examine by the technician to know the root cause of the issue.

Please follow the above link to visit the nearest service centre.