OK guys...I had this same issue, and about freaked out...try this:
Turn phone on, when you see the Android guy DO NOT TOUCH
Then, starting with the top left corner of the screen, touch each corner of the screen clockwise (top left, then top right, then bottom right, then bottom left)
At this point you should get a FC for setup...then you should get a box asking if you're sure you want to exit setup- YES- then you should get to the screen that tells you which parts of setup you completed (except none will be checked) click OK.
Then you should be at the homescreens...hopefully your signal should appear (assuming you were on the most current system version) ...
I hope that helps please report back so we know you are OK
Sent from my DROID RAZR using Tapatalk
Yeah so this is not working, doing the 4 corner trick isnt working, I know my screen is functioning because i can bring down the notification bar and also choose a language, but it will not allow me to perform this, already performed wipe data/cache and reinstalled rom, same problem, please help, I'd hate to know I soft bricked this phone