Samsung Galaxy Tab 8.9 4G P7320T hard reset
A soft reset, If your device is frozen and unresponsive, press and hold [POWER ] for 8-10 seconds. The device will reboot automatically.
If this does not solve the problem, perform a factory data reset.
In Menu mode, select Settings → Privacy → Factory data reset → Reset Tablet→
Using Keys to Reset Samsung GT-P7320 Galaxy TAB
With the Samsung Galaxy TAB turned off, press and hold the VOLUME up button, and then briefly press the POWER button. Select Factory reset Wipe data.
Reset you Samsung Galaxy Tab 8.9 4G P7320T from device menu
In Idle mode, open the application list and select
Settings → Privacy → Factory data reset → Reset tablet → Erase everything.
Select Settings > Privacy > Factory data reset: Reset your settings to the factory default values and delete all your data.
Press Application button, then Settings > Reset settings: Reset your settings to the factory default values.
While using your device, be sure to back up important data. When disposing of your device, back up all data and then reset your device to prevent misuse of your personal information.