Erasing everything off of your phone and starting anew is a pretty drastic step to take for a little glitch. For most people, system restoring is a last resort option, but there are a few reasons to want or need to restore your device to factory settings.
Many people have tried to unsuccessfully root their Samsung Galaxy S3, and in turn have bricked their phones. System restore is one of the only options to recover a bricked phone.
If you are simply having hardware issues that you cannot seem to fix on your own, restoring the system is an easy way to solve those problems, too.
Also, if you... more