Samsung Galaxy S3 — Galaxy S3 Factory Reset

If you'd like to reset your Samsung Galaxy S3 to its original factory settings, the process is really quite simple.

First, tap the options button under the screen (it's on the left).

Then, tap settings. Go to the "Personal" section and click "Back up and reset." From there, tap "factory reset." You're done!

Beware that all of your personal data will be lost...

-----
Android News I Android Apps I App Center

My boss messed with my new phone and put CyanogenMod on it, how can I restore it to factory setting??

actually there is three ways to reset Galaxy S3: Hard Reset Samsung Galaxy S3 (3 Ways With Videos) itjungles.com/android-tips/hard-reset-samsung-galaxy-s3

Thanks for this, its really a great help to know how to do this

Factory reseting a phone to many times can damage the phone?? What happens is that I had to do it several times to fix some stuff, the phone is working perfectly but mayne internally something is messed up, I don't know. HELP MEE PLEASE