I am having a similar problem as the previous poster (itzlilc). I have an XBox v1.5 and Xecuter 2.3 Lite+. I followed the directions in the very beginning of this tutorial exactly (for those with Cromwell and I hoped these directions would apply to my case...)
I used BIOS 4977 and a 100MB dummy file and a Memorex CD-RW at 4x (burned in Nero with all the correct settings). I flashed it (the drive seemed to read the media fine and the XBox shutdown)...and I hoped everything would work as advertised, but unforfunately it FRAGs everytime I boot with either Bank 1 or Bank 2. When I disable the mod, the Xbox works fine and boots normally.
Questions:
1) Is there anyway to rescue this modchip? Besides buying the adapter to essentially make this the Pro edition?
2) If I had only flashed with 512K instead of the recommended 1,024K would that have saved one of my Banks?
3) What SHOULD I have done? Which BIOS should I have used??? Is there anywhere else something could have possibly gone wrong? My gut feeling is that the mod is installed correctly but I just picked the wrong BIOS version...
Please respond, if possible, with step-by-step instructions for a newb such as myself.