flash 6100

when i power on my 6100 it goes off after 1 sec, i flash it by griffin ver 4.70,after flash done a test mode appear on screen
when resting factoy setting disappear and no power again , flash again without factory setting same first problem : power on goes off.
i flash it 3 times same problem some time it's OK only for first time next power on goes off , please help i need to fix
the problem , i bought griffin yesterday and coldn't flash 6100 , is there any sepical setting for 6100 ??
any comments ?