You need a jtag of course, a usb, and you old flashdmp.bin.\

1.Get on your pc and replace your new updflash that you just flashed into ure jtag and either gave you xmas lights or the controller virus with you flashdmp. Yu delete the updflash and rename the flashdmp to updflash. None ure done on the pc.

2. Plug yur usb into ure jtah and hit the eject button. Let xell load up till it shows ure cpu and dvd key. Now turn off your jtag by unplugging your powerbrick.

3. Have your usb plugged in the jtag and hit the eject button to open xell agin. It should find the updflash.bin and flash it. Wait till its done flashing and HIT THE POWER
BUTTON to turn it off.

4.Now just hit the power button to turn your jtag on and it works agin xD!

Hope this helps thanks! Worked for me and all my friends!