How to Reset Samsung Galaxy Tab 7.0 Plus
You can reset your Samsung Galaxy Tab 7.0 Plus to return its factory default settings. It is recommended to back up your personal data such as contacts and image prior to performing factory data reset to the mobile device.
To hard reset/factory reset your Galaxy Tab 7.0, do the following instructions:
This action erases all data from the device, including Google or other email account settings, system and application data and settings, and downloaded applications, as well as your music, photos, videos, and other files. If you reset the tablet in this way, the next time you turn on your tablet you are prompted to reenter the same kind of information as when you first started Android.