Hi
@beefysomeoneIt depends if your device is refurbished and where did you getvit from best advise if you got it second hand check the battery status in members app under support section and "diagnostics"
Also you can turn off auto blocker on your phone open your phones dialer
Type : *#9900#
Scroll down till batterystats reset press on it and exit.
Other thing to do is wipe cache partition on your phone.
Run safe mode to see if there's any 3rd party apps causing this issue
https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/?srslti...And yes you will get one ui 7 update.