Step 1 - Connect the PC to G2's Wifi point
Step 2 - Click the button "Repair G2"
Step 3 - Press and Hold the fire key on G2 until it cancels 
        the countdown and show this screen on the right: 
        once you see that screen, let go of the fire button.
Step 4 - Quickly, you have a 10 seconds window to 
        connect the PC to G2 via WIFI again.
Step 5 - If the connection was established inside the 10 
        seconds countdown - G2Tools will auto-repair G2's
        firmware.

Success - Allow G2 to Auto connect the previously set 
home router and begin the automatic online update. 
If fails, try again from step 1. 