The explained steps in this Guide will help you to Factory Reset Samsung Galaxy Tab 2 10.1 with model numbers GT-P5100 (3G + WiFi), GT-P5110 and GT-P5113 (WiFi only).
Samsung Galaxy Tab 2 10.1 GT-P5100 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).