Can someone help me i try to upgrade my zenithink c91 someone flashed it I brought it off of them and i knew the problem and it says press camera key to update when i do so nothing happens says kernals mismatch ect then shuts down every time i want to get it on i have to use pin to reset ... i have formated the card that came with it and loaded 3a files on to it and it says files detected 3a mismatch then something about 2 n so i loaded 2n files on instead and it says update starting then shuts down please help me guys 
