Hard Reset SAMSUNG G730A Galaxy S III mini (AT&T)

1. Make sure that your device is off.
2. Next press and hold together Volume Up + Home button + Power button, and release them when you see Samsung logo.
   
3. Now you see Recovery Menu, where select the option "wipe data / factory reset" usingVolume buttons and confirm any operation using Power button.
   
4. Then confirm previous operation "Yes - Delete all user data" with Power key.
   
5. After that, select option "reboot system now".
   
6. That's all.

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.