I've never seen anything even close to that. When I was a metal finisher in an automobile plant we had a couple of terms for damage metal. Many of my fellow metal finishers were from south Texas. If something was bad they'd tell me it was "no bueno". If it was really bad it was "way no bueno". Your image looks "way no bueno" to me. What sticks out in my mind is that you frequently flash your phone. Is it possible there are only so many times you can flash a phone before it is "worn out". Years ago when I was flashing Motorola V635 I ran across a couple that stopped taking flashes. I'm guessing here. Hope you find the answer, and soon.