Product: Mobile > Cell Phones > T-Mobile Cell Phones > SGH-T839
On the same spine as the volume keys there is a dedicated Lock key that can be used to lock the Sidekick 4G. This key will darken the LCD screen to prevent accidental screen taps as well as lock all hardware keys. Simply press the Lock key to lock and unlock the device.
Note: Unlocking the device will always bring up the "soft lock" screen that requires a quick swipe to restore device functionality.
For more information on the SGH-T839 (Sidekick 4G) click here.