S21 ultra power save problem

[Kyle26]

I have a s21 ultra that won't go into power saving mode when I turn it on. The battery life estimation remains the same and nothing changes on the phone.  Does anyone have any idea what is causing this?

[Blessed4life]

Hi, try a soft reset if that doesn't work try clearing the cache partition if you haven't done so already.

[BandOfBrothers]

@Kyle26  

Perhaps put the phone into safe mode to see if something you have downloaded onto the phone is causing conflict. 

Https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/ turns off downloaded apps and themes etc which may highlight an app or theme that's causing conflict. 

If absolutely necessary back up and factory reset.

A Samsung Experience Store or Samsung Service Centre can help.

I wish you all the best.