Arduino Mega 2560 only blinks "long-short-long" anymore [solved]

hi, i've uploaded code (tries same code now on an secon one and code is ok) to my mega and it did not uploaded complete. Since then the mega only blinks kind of error state (long,short,long,short, ...) and does not boot up anymore or allows me to upload code. is this blinking an faulty bootloader or is the mega dead?

SOLVED: broken bootloader....reflashed bootloader and everything is up again.