Long story short, my friend's little brother did some borked soft-mod attempt on their xbox. They used something titled "Krayzie_SC-NTSC_Ndure_Installer_v1.1" Whatever it did, they were left with an evox dash that had two menu options; Launch Disc, and Settings.. no M$dash, no nothing else. I managed to ftp to it and get the eeprom backed up, so I have the HD unlock code and everything.
A while back, I soft-modded my own Xbox with the ltools 007AUF installer, and then a year ago I upgraded my hard drive to a 200gb one using Xbox HD Maker. The process was very simple and quick, and I understand the concept of what I needed to do... give XBHDM the contents of my stock HD's C and E partitions, and the eeprom file, and it does the rest. THe ltools installer leaves you with the ability to totally uninstall the soft-mod, to bring the machine back to stock (which I did with the original hard drive, as a failsafe)
Unfortunately, because my friend's HD didn't have the stock C and E partitions, I couldn't do this. XBHDM was still setup for my own hard drive,
so all I did was swap my eeprom file with his, figuring I could leave my own C and E folders, and the machine would just have all the crap that mine had.

Yeah, that didn't work.
So now I'm at a loss as to what to do. I've started doing some reading, but haven't come up with anything really beneficial yet. I remember when I was doing the ltools installer on MY xbox, it gave me the option for a couple different bioses to install, and if I remembered correctly, there was some significance of one over the other if you were doing it on a 1.6 xbox... I'm wondering if maybe I need a different bios for my friend's box? But I wouldn't know where to look or what to look for. Is t here something else that might be causing the problem? The machine doesn't load at all, I get the normal xbox splash, and then it just goes to the garbage, whether a game is inserted or not.
Any help would be much appreciated, thanks in advance....