Samsung Galaxy S2 is not a new smartphone on the market; it was released in 2011 and already Galaxy S3, S4 and S5 have come into the market. However, Samsung Galaxy S2 is one of the best smartphones because of its attractive features. The design is another thing that attracts many users. However, some users are complaining that they are experiencing random reboots problem on Samsung Galaxy S2.
There is nothing to worry about if you are facing random reboots problem on Samsung Galaxy S2. You only may need to clear some cache or data in your Galaxy to bring it back to its normal operation.
See also- How to fix random restarting problem on Galaxy Note 3
Potential solutions for random reboots problem on Samsung Galaxy S2

Random Reboots Problem On Samsung Galaxy S2
To solve the random reboots problem you have to do two things, first, boot your phone into Safe mode and second, wipe the cache partition.
Booting your Samsung Galaxy S2 to Safe mode will disable the third-party apps which may be causing the random reboots problem on Samsung Galaxy S2. To boot your phone into Safe mode:
1Take out the battery from the phone.
2Re-insert it again.
3Press the Menu key and hold it.
4While holding the Menu key, turn on your phone.
5Go to the Menu key when you see the lock screen.
6In the bottom left corner, you will see “Safe mode.”
Now observe closely if you still see the phone reboots in Safe mode. If not, then find out the apps that may be causing this problem and delete them. However, if your phone reboots in Safe mode, then you need to boot your phone into recovery and wipe the cache partition. To do that:
1Turn off your Galaxy S2.
2Press the Volume Up and Volume Down keys and keep them holding.
3Press the Power button and release it when the phone vibrates.
4Continue to hold Volume Up and Volume Down keys until you see Android System Recovery Screen.
5Highlight wipe cache partition pressing the Volume Down key.
6Press the Power button to select it.
7Highlight Reboot System Now and press the Power button to reboot the phone.
After following these steps, observe if the problem persists. If yes, then you have to perform a Factory Reset.
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