To Perform A Hard Reset - HTC TyTN User Manual

To perform a hard reset

Press and hold the Left SOFT KEY and the Right SOFT KEY, and at the same
time, use the stylus to press the RESET button at the bottom of your device.
Left SOFT KEY
Warning! Your device will be set back to factory default settings. Please ensure any
additional installed programs and/or user data have been backed up before
a hard reset is performed.
Managing Your Pocket PC Phone 85
Right SOFT KEY