[abrasive]

I also encountered this same error with my November tp. The screen would flash static and go to black with the backlight still on, and when it did work, the phone would become unusable due to lag after 5 or so minutes.

I wasn't able to figure it out; flashing back to stock and undoing all of my ROM alterations. I was convinced it was a hardware issue for me. Just returned it to Sprint under warranty.