Had the rebooting issue today. Over and over while on the Interstate(passenger). Took the SD card out but had to wait about 10 mins to re-assemble the phone. I did and the reboot went away....for awhile. Hmm. Pulled Batt-replaced-same issue. Remembered it was off for awhile after SD pulled. So I pulled the batt again and placed it on one A/C vent and the phone on another for 5 mins. Re-assemble the phone again. Problem went away. Continued to use but directed A/C air on it. Thought's?