Samsung Galaxy Tab 7.7 hard resetPersonal Data
Factory data reset
Use Factory data reset to return your device to its factory
defaults. This setting erases all data from the device, including
Google or other email account settings, system and application
data and settings, and downloaded applications. It will not erase
current system software and bundled applications, or files stored
on an installed memory card, such as music or photos.
1. From a Home screen, press the Menu Key ➔ Settings ➔ Privacy.
2. Touch Factory data reset, then follow the prompts to perform the reset.
Samsung Galaxy TAB P6210 hard reset using keys
1. With the Samsung Galaxy TAB 7.0 turned off, press and hold the VOLUME UP button, and then briefly press the POWER button.
Note: If you see "Downloading" on the screen with an Android shoveling you pressed the wrong Volume key. Turn off and try again.