Re: Firmware update
What are all the leds lights doing? color/blinking/solid?
And the power lights, what color is it and solid/blinking?
Have you tried a factory reset? push and hold reset for 7-15 seconds while powered on?
you might be a candidate for tftp recovery.
are you on windows? if so, follow this guide
just make sure you enable tftp
and here's a video walk through.
and if that doesn't work, you can try using nmrpflash