T-mobile G-Slate tablet hard reset
To reboot your tablet when the screen freezes:
If the device does not respond to user input or the screen freezes:
Remove the back cover and press the RESET button with a pointed object to restart your device.
To perform a master reset, follow these steps:
From any Home screen, tap Apps. > Tap Settings > Scroll down to and tap Privacy. Choose Factory data reset and tap Reset tablet.
All data will be deleted! Pictures in Gallery will not be deleted.
You can also use LG Mobile Support tool to repair some LG device, after download select menu Customer Support > Recovery
Click Mobile Support Select the Carrier (T-Mobile) Select the Model T-mobile G-Slate.
If you know T-mobile G-Slate tablet hard reset using buttons / keys pls leave comment.