Hello, Swizzy,
I'm having the same problem. I would gladly read about the solution, but the above link for your tutorial isn't working.
I've also tried to verify my nand dump in jrunner, but the program hangs.
My console was purchased modded, it's on dashboard 2.0.16747.0, FSD 3 775, a 4 GB Corona with RGH 2, i've installed a compatible dashlaunch 3.12 and that's what it tells me.
When you have the time, could you please point me in the right direction? Thank you!