When you boot your xbox with your modchip enabled, is there a solid green light on Xbit board w/ the dip switches? You mentioned it was flashing but never solid?
I had a similar problem as you initially, it ended up that the modchip wasn't making contact w/ the d0 point, I ended up removing the spacer when I screwed the chip to the mainboard to make sure there was contact w/ d0. This is the most common problem.
Also make sure that your are using a bios in the correct partition of the flash, ie: a 256k bios in a 256k parition and a 1 meg bios in a 1 meg flash, people (including myself) have tried to boot the xbox after loading a 256k bios in a 1 meg partition.
Finally, if none of the above works you probably have a version 1.5 xbox. If your xbox is version 1.5, you may need to solder 1 point on the xbit. I am not sure if Xbit still requires you to do this with a 1.5 version. Can anyone confirm whether or not you need to solder a for a 1.5 xbox?
Let us know what happens.
This post has been edited by rlusignan: Feb 29 2004, 09:55 PM