I'll admit it up front, this was rather stupid of me to start with.
I started to do a glitch work up on a friend's 360. Dumped the NAND, flashed the resulting ecc file and the chip I was using didn't work. He disappeared into the woods for 3 months and now he has given me a fancy new Coolrunner RevC to install.
Thing is I can't find the original NAND dump and I don't remember if I was using RGH1 or RGH2.
My question: is it possible to simply dump the NAND as it stands and run it through the requisite tools to generate a new ecc file to reflash? Or should I go back to scouring my storage for a rogue binary file and/or flash the proper timings and see what Xell bites?