The explained steps in this Guide will help you to Factory Reset Samsung Galaxy Core Duos with model numbers GT-I8262, GT-I8262B, And GT-I8260 with single SIM Card.

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.