Thunderbolt Won't Wake Up During Call

The screen on my phone turns off and stays off whenever the phone is activated. I cannot get the screen to turn back on. This is incredibly annoying. If the other party does not end the call (say it goes to voicemail or I have to pull up the numberpad to enter something) the only way I can end the call and get the screen to turn back on is to take the battery out and reboot. This has nothing to do with the proximity sensor. The phone goes to sleep instantly as soon as I hit the call button, or accept a call....and nothing short of taking the battery out will wake it.

This started just a few weeks ago, was fine before then. I tried updating my rom with a full factory reset (was using an older bamf rom, updated to bam forever 1.10) and that didn’t work. I downloaded the “screen on” app and set it to leave the screen on during active calls. It worked for a day or so and then stopped working.

Does anyone have any suggestions on what I can do? This is an absolute killer, I can’t continue using this device if I have to pull the battery whenever I want to end a call. Any advice at all would be very much appreciated.

Thanks for the replies.

I figured it wasn't the proximity sensor because it's not as if it sometimes works, sometimes doesn't, works better if I remove the case, etc. Though I suppose there is a chance the sensor completely shutdown.

Also, I tried pairing with a blue tooth headset and the phone worked fine, did not sleep during the call. Without blue tooth, immediately sleeps and doesn't wake.

Going to try a different developer and see what happens.

Interesting results. Tried a different developer with a factory reset and the sleeping problem has been resolved, phone function works fine. However, the vibrate function is dead. Tried a few different developers and nothing. Phone will not vibrate at all...no haptic feedback, not on a text or call when set to vibrate, not while booting up, nothing. Any ideas? Thanks.