Power off phone Use hardware keyboard Press and hold the 'X' key and Power button until you see a screen with an exclamation point inside a triangle Press and hold the Volume Up key then press the Camera button (I had to do this twice) to get menu screen (Linux back-end becomes VERY apparent here) Using the D-pad, select one of the Wipe options (specifically Wipe Data/Factory Reset) Confirm your selection and wait for it to complete Reboot the device