Woops misread what the poster had said before me.
If your phone is JB and you do what I said then you will 'stuff it up' and it will be frozen on that screen. I can't really go into much detail as it's off-topic but there are other threads on this issue if you're interested.
Yep to the O.P; do what the poster said and restore the phone and see how that goes. 🙂