not to revive an old thread but if you didn't get this fixed please elaborate on "blinking".
# are you referring to the boot logo flashing and and device constantly boot loops?
# are you referring to black screen, device unresponsive to buttons, only white led blinks?
# Some other situation
Also were you attempting any actions on device like flashing/unlocking, or using it like normal and it just shuts off (battery failure)?