Sigh.
Just tried again without the lang table modded, got the same result.
I see the intial screen with the desired version number on it:
But that screen is only on for a second before it gives me the software error screen I posted above.
I am on a MKIV, in an E46 M3, and on software 4-100 (although I am using a V31 disk to bring my nav back to life after every time I brick it
I just can't figure what I am missing here.
I think I am going to try to mod JUST the SW version number, no splash screen or ohter changes, that way I can start to narrow down where I am going wrong here.
Any input is appreciate, thanks as always guys.