I recently sent my phone out via Radio Shack (Werx) to get the screen repaired. When it came back, I also updated my phone to JB. Since then, I have a real problem with the screen going blank during phone calls. Nothing I press brings the screen back. If I make a call and it goes to voice mail, the only way to hangup is to pull out the battery. And if someone calls me, I have to wait for them to hang up before I can do anything on the phone. A partial workaround is to set the phone to always show the numeric keypad for all outgoing calls. But it is still a problem for incoming calls. This is really getting in my way. Any suggestions on what to do? Oh, and I downloaded AndroSensor and it says my Proximity Sensor is 1.2 inches, all the time. I have a Droid Bionic on Verizon.