Also, as in the previous case, you should charge the battery, and then press the buttons below, and in the menu that appears, select Reset to factory settings - factory reset. Thus, the graphical key is removed, as well as all the data to the phone, ie he will come to a new state (in terms of software). The phone must be switched off.
HTC Wildfire S - press simultaneously the sound down and the power button until a menu appears, select factory reset, it will remove the graphic key and reset the phone at all.
HTC One V, HTC One X, HTC One S - push and hold the subtraction of sound and the power button. After the logo appears, release the buttons and using the volume buttons to select reset the phone to factory settings - Factory Reset, confirmation - using the power button. After the reset, you will get an unlocked phone.