17bittu
Active Level 1
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Galaxy M
my 5 days old M21 is heating in upper part of display  
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rajkm008
Active Level 10
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Galaxy M
check out is there any system updates available for your phone
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17bittu
Active Level 1
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Galaxy M
latest update installed
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rajkm008
Active Level 10
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Galaxy M
Follow these things to use your device to bug free
1. Install only necessary applications
2. don't install unnecessary apps which is can make device lagging
3. Don't use device while its charging
4. If u have received the updates dont update it immediately wait for other users experiences post update
5. Keep enough space on device which is help you device functionality smoother
6 Settings>developer option>Background process limit >choose no background process
7. Optimise your device often with device care application
8. Restart the device once in every two days.....
karthi8402
Beginner Level 4
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Galaxy M
thanks for this information
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rajkm008
Active Level 10
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Galaxy M
Turn off Wi-fi, GPS , bluetooth and other connectivity options when not in use by dragging the notification panel.Close applications when they are not in use by using the recent application button.Too many applications installed in device may result in device heating since their corresponding process will keep on running in background.
karthi8402
Beginner Level 4
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Galaxy M
thanks for this information
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Ehsank
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Galaxy M
For heating issue you can do 2 things and lets see

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.
This can Help you little bit more.
But if unfortunately it won't work then last option is

3. "Factory Data Reset" but before that take proper backup.
Johnash
Active Level 4
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Galaxy M
Please do not do anything, let it settle down for few days. Update do cause draining battery and heating device.
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Samsung_Support3
Moderator
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Galaxy M

Dear Samsung Member,

Greetings from Samsung Customer Support!


Please visit this mentioned link to resolve your device heating issue: https://www.samsung.com/in/support/mobile-devices/why-the-device-heats-up-during-use/


For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).


Thank you for writing to Samsung.

 

Warm Regards,
Samsung Customer Support

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