S21 Ultra Battery life and heating issues

[ananthmb]

I was very excited to get my S21U. The phone is great and has a lot of amazing features that helps you attain the epic 'Ultra' level flagship experience. The best display in the Industry, one of the best cameras, fast processor, amazing software etc. Unfortunately my unit heats up horrendously especially top left corner while doing intensive tasks like video calls. I lost 17.5% in 1 hour of video call. I am not getting the battery life that Samsung claims.

[Itsdebby]

you can try these steps if after update you faced issue

A. Wipe Cache Partition.

Steps to perform.

1) Turn off the device.

(Connect with type C cable and connect withpc/laptop/type C earphone only for Android 11 )

2) Press and hold the Volume Up key and the spower button.
3) When the Android logo displays, release all keys.
4) Press the Volume down key to navigate and select "Wipe cache partition".
5) Press Power key to select. When the wipe cache partition is complete, Select Reboot System.
6) Press the Power key to restart the device.

B. Reset App Preferences.
Settings >Apps> Tap on Top Right 3Dots and select Reset App preferences.

C. Go to settings >general Management >reset>reset settings.

[Itsdebby]

one of the main reasons of battery drain is background activity,
even you close apps but they uses ur battery and running in background unnecessary, see image(1) and read the statement.
2nd due to huge notification options.
for e.g ; Google has huge notification which we don't need at all see image(2) just scroll up and down and check how many notification it does have.
So do these settings to stop, which consume battery unnecessarily.

1. Settings>>Connection>more connections settings> disable nearby device settings

2. Settings>>Location>improve accuracy >disable
A. Wifi scanning
B. Bluetooth scanning .

[ananthmb]

this was already done. I have tried your first step now will keep you posted on updates. thanks

[Itsdebby]

Try these steps & if my comment helped you click on 3 dots and accept solution

[randomguy08]

play store services might be consuming more battery in background and we can't disable it

[ananthmb]

this time around its WhatsApp. Play services is not draining much

[Notadeveloper]

Blame the chipset inside your phone. Thermal management done bad this time as well. So expected

[Ehsank]

if you not done yet then do some settings to save more battery life and observe for next 1-2 days, it will give a noticeable difference

1. Settings>Connection>more connections settings> disable nearby device settings.

2. Settings>>Location>improve accuracy >disable
A. Wifi scanning
B. Bluetooth scanning .

3. Device care>battery >power mode>select "optimised" and "adaptive power saving".

And then click on "app power management >
And enable these 2 options.
A. Adaptive battery
B. Put Unused Apps to Sleep.

4. Long press on each app specially 3rd party app(LIKE FACEBOOK, YOUTUBE) and rarely used apps and also ON "GOOGLE APP" as well, then click on>app info> go to these 3 options below on by one

A. Mobile data> allow background data usage>off

B. Battery >allow background activity >off

C. Notification >disable unnecessary notifications like promotional and unnecessary reminder notifications.

5. Go to settings> privacy > permission manager > location> and check which app have accessing your location all the time and if you not using that apps much, then deny access or set as " allowed only while in use"
As unnecessary location access by 3rd party app causing battery drain.

6.  Go to settings > Google > on device sharing> check which 3rd party apps present there for e.g. if you use paytm , paytm will  shared data to show recommendation and suggestion which also cause battery drain

7.  Go to settings > account and backup> account > check which app syncing automatically there, and if any app which not necessary to auto sync then click on it and "disable sync"

8. Go to settings >apps>search "weather" >click on settings icon right side > change "auto refresh" settings as per your requirements and disable some unnecessary reminder. ( due to auto refresh it continuously consuming battery)


9. If you use Facebook frequently then disable "auto play video"
And if you are mostly uses mobile, on wifi connection then also disable "auto play videos" in YouTube.

10. Settings>Google >click on 3dot at right top corner>usage and diagnostics >off this option.

[Ehsank]

and if you feel continuously heat then do visit service centre once