Bad ROM install - How to Recover
Sorry if this has already been covered, but i couldn't find anything!
I recently updated my xda with a bad ROM and the phone would move past the spash screen.
Its possible to install a new ROM even when your phone wont start, and here's how!
Hold down the Vol Down key and press the Power button and you will see the tri-colour screen. Connect your phone via USB and check that USB is displayed on the screen, once it is you can load a new/backup rom in the normall way!
Hope this helps someone!