I had this problem of only being able to make emergency calls. No other buttons on the phone worked. I determined it was asking for a pin which I never had set up. I conqured this by putting a bogus pin in several times, then it took me to a screen where it said forgot password at the top left and it requested the gmail username and password and the it enabled me to assign a password and now all is well. Just thought this would be helpful to someone that this may happen to on a droid bionic.