help with indigo 2!

[karlin]

i just recently bought an indigo 2 secondhand from ebay, and for a few days it was working like a dream. Last night i tried to upload the 1024 patches update, and after the patches had transferred to the synth it froze on a waiting screen with 0900 on it. i left it for a few hours thinking that it just had to take some time to load up, but when i came back it was stuck on the same screen. Any button i pushed would not work and i could not cancel out of this screen. I then turned it off and on again to find that the synth would not turn on at all and the lfo 1 and 2/3 led's would blink once and then nothing after that. I have no idea what has happened i dont know if i have damaged something accidently somebody please help!