The explained steps in this Guide will help you to Factory Reset Samsung Galaxy S3 Mini with model number SM-G730A from AT&T Mobility USA.
Samsung Galaxy S3 Mini SM-G730A Factory Reset Checklist:1- This process restores the Android platform to its original state and wipe all your data, So backup all the wanted data (Contacts, SMS, Photos, Videos,… Etc).
2- Make sure that you know the Google account name and password.