Reasons Android phones keep rebooting and steps to Fix it.

• Check to see if your Android operating system is up to date.-To keep your device performing at its best, you must download and install the most recent operating system (OS) updates. Scroll down in your Android Settings and select Advanced > System updates. You can use this page to check for updates, monitor your device's update history, and, if necessary, employ a Software Upgrade Assistant.
• Examine your storage options and make any necessary adjustments. If your Android is up to date, check the storage and free up some space if it is full or nearly full. A cleanout is required if there is less than 10% spare space. Deleting unneeded files and cached data will aid in the optimal operation of your device. Go to Settings and select Storage.
• Close any apps that you aren't using.-Although Android controls memory apps while in use, there may be times when you wish to check for updates or force the app to close. To get updates for Android apps, go to the Play Store app, press the three-line menu, and pick My apps & games. Select Update for a single app or Update All if you have many apps that require it. Open Settings, select Apps, select the problematic app, and select Force shutdown.
• If you're using external batteries, take them out of the casing.-Remove third-party accessories while debugging the problem to rule out third-party accessories as the source of the problem. If they turn out to be the source of the problem, consider replacing or removing them.
• Look in Device Care to see if auto-restart is turned on.-Some Android smartphones, such as Samsung's, offer a Device Care feature that can assist you to improve the performance of your smartphone when it's needed. Follow the steps below to see if Auto-restart is enabled as the cause of your device crashing and rebooting. Open Settings and select Device Care from the drop-down menu. Select Auto-restart from the three dots in the upper right corner. If the option is enabled, turn it off to see if it fixes your problem.
• Restore your phone to its original factory settings.-Search for Factory data reset in Settings and pick it. After that, tap Factory data reset once more and go over the details. Swipe to Reset after you're finished. If your phone has a security lockset, you will be prompted to input your credentials. Tap Delete all to remove all information and downloaded apps.

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