When Launch x431 diagun is locked,restore DIAGUN: 1.Soft RESET-reset button. 2.Hard RESET -A hard reset restarts the Diagun and erases all program data and system settings. After a hard reset, your Diagun returns to its default settings and loses all information that is not recorded in ROM. To perform a hard reset: Locate the recessed Reset button at the bottom of the Diagun Press and hold down the Power button. Without removing the Power button, insert the stylus into the recess to trigger the Reset button. Hold down both the Power button and the Reset button until the screen fades off. When the screen has faded off completely, release both the Power button and the stylus. You will notice the Power indicator light up green, at this point, presas the Power button to turn ON the Launch x431 Diagun