Thank you very much for your help.
The console has never been opened so I guess the alternative solution is out of the question, but I'll remember that when (and if) I try softmodding an Xbox again.

Hello, I'm bumping this thread because I basically have the same problem and I can't find any way to unbrick my Xbox. I foolishly did the same thing with the kernel and now I get a black screen after the Xbox logo, the LED remains green, I tried both Splinter Cell and Rocky5's extras disc burned ont...