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?
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.
Daily Driver > Samsung Galaxy s²² Ultra 256Gb in Phantom Black.
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