One of the most frustrating problems Android users may face is when their device randomly reboots itself. Your phone could be working fine and then you find yourself staring at your phone which is stuck on reboot loop and you may not know what to do next.
Why is my phone restarting? This is the first question you’re probably thinking of if you’ve found yourself in a situation with a phone that just won’t stay on. There could be a number of possibilities why your device is looping:
Hardware damaged – if you’ve recently suffered a cracked screen, this could have affected your device internally.
Third Party apps – using third-party apps can corrupt the software on your device
High CPU frequency – this can be a potential logic board issue A diagnosis will detect any of the above issues your device may be experiencing, however, we have listed some helpful tips and tricks below so you can potentially solve this issue fast.

HOW TO FIX PHONE KEEPS RESTARTING OVER AND OVER

Perform App & System Update

Some apps and Android systems, when not updated regularly, can explain why your android phone keeps restarting. So make sure they are up to date. When random-rebooting arises, this should be the foremost action to take.
Close the background Apps: Sometimes, the apps sucking your resources in the background are the culprit. Navigate to Settings > Applications > Running. Trace the background apps that are running, and choose to "Force Stop" In case you notice any third-party app, uninstall it straight away.

See if the system apps are not disabled

Knowingly or unknowingly, you may have disabled some system apps. This may not just hamper the functioning of your OS but can also cause your phone to restart or freeze No worries, as you can find them and enable them again. Open Settings > Applications. Scroll down to see which apps have a “Disabled” sign. Enabling them may help your system returning to a smooth operation.

Remove case and external batteries if using

Do you use any third-party accessories such as a case or external battery pack? If so, these add-ons could be the reason behind your troubles as they can often cover your smartphone’s sensors or buttons.

Check Device Care and see if auto-restart is enabled

Some Android devices, such as those from Samsung, have a Device Care option that can help boost your smartphone performance when needed. To check if Auto-restart is enabled as the cause for your device crashing and rebooting, follow the instructions below.
Open Settings and tap on Device care. Click on the three dots in the upper right corner and choose Auto restart. If the option is enabled, disable it and see if this resolves your issue

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