I have a Verizon GS4 with JB 4.3. When I pulled my phone out of my pocket, the screen was solid red with a white Verizon logo. The logo tail shows a pulse and my blue notification led is pulsing. Rebooting, battery pulls, wipe data partition, and repeated factory data resets, in recovery mode, have not changed this display when the phone reboots. (I even tried a fdr with the SD card out of the phone.) I can get the screen to go dark with the power button but the power off option never appears. I'm thinking that somehow the KK update started in my pocket because the phone was warm when I pulled it out and I have never seen this display before. Is there some other way to interrupt what is going on and go back to JB?