Troubleshooting - Samsung Galaxy Tab 2 10.1 User Manual

Note: You can customize the Lock screen and set the type of
Screen Unlock you want to use (Face unlock, Pattern,
PIN, or Password). For more information, refer to "Lock
Screen" on page 128.

Troubleshooting

If your device has fatal errors, hangs up, or freezes, you may
need to reset the device to regain functionality.
•
If your device is frozen and unresponsive, press and hold the
Power/Lock Key for 8 to 10 seconds.
Getting Started 15