Hard Brick Ace, need help, my phone is doing strange things topic

Hello ,
I was flashing my 5830 with CWM then he shuted down while he was fully charged.
I was'nt able to reboot in any way (regular , download, recovery) : my screen is black, not even a little light.

But i plug it into the computer, and this time odin recognised it as 0:[COM17].
I was happy, and i put the firmware from samfirmware, and started flashing.
But he gets stucked at setup connection because he says that he can't open the serial COM port.

What can I do ?

Thanks, Kal.
PS : I need my phone tomorrow :crying: so please answer quickly ;)