Samsung i760 soft reset
Press the reset button.
Use this method to hard reset your Samsung i760 phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.
Or Samsung i760 hard reset using buttons / keys
Press and hold the center of the 5-way navigation pad on the QWERTY keyboard.
While holding the center of the navigation pad, use the stylus to press and release the reset button.
When "Clearing Data..." appears on the screen, release the center of the 5-way navigation pad.
Device will continue a power on and will prompt to align screen