i have a samsung galaxy s6 boostmobile/sprint920p. yesterday when i was talking on the phone it cut off on me and ever since it is stuck in bootloop mode. i had the 6.01 firmware oon the phone but when i flashed the firmware again it said successful but still does the same thing. if the phone is off and i hold the volume up,power button and home buttom a blue screen with the android guy comes on and says system upgrading, then the android guy falls with a exclamation mark then the phone just reboots. i have flashed different firmwares,wipe cached data,reset to factory and still no help.