Flashing completely wipes internal storage. Copy your contacts, photos, and messages to a computer.
Resetting forgotten pattern locks or screen passwords when recovery mode is inaccessible. Xmobile X3 Flash File
If the progress bar does not start, your computer is not communicating with the phone. Reinstall the USB drivers, try a different USB port (preferably a USB 2.0 port on the back of the PC), or try a different USB cable. Flashing completely wipes internal storage