Samsung M21 heated easily to 43 degree Celsius without high use, rubbish phone.

[UKMaskey]

[abhi2700835]

its normal usage device it can't run very processor intensive task

[Ehsank]

don't completely trust on this kind of app
if you try another one it wil show you different

[UKMaskey]

I can feel the heat in my palm while using the mobile, the number in the app may differ but the sensation cannot differ.

[Ehsank]

then you can you can do 2 things and lets see
but after still problem persist then try to visit service centre

A. Wipe Cache Partition.
Steps to perform.
1) Turn off the device.
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.

[veer]

its normal all device so don't worry

[jarvis44]

Heating Issue in this phone is not because of the phone or processor .it is because of the Network

When i use mobile data in my phone it gets heat up from the upper part of screen and from camera cutout section, but when is switch my mobile data with WiFi, it doesn't heats!!!!

Try Turning off Mobile data and switching to WiFi (or Hotspot) and you will definitely see mind blowing difference between the temperature of your device!!!

[jarvis44]

this heating issue come after July security patch. when phone using internet related task like downloading, watching online videos and browsing etc it heat very quickly.

[jarvis44]

if all galaxy m21 user send error reports to Samsung. it is fixed with next software update.

[jarvis44]

please all galaxy m21 user send error report to Samsung