Hi Justin,

Welcome to the forum BTW.

This sounds like where you have gone wrong, when you unzip the v29.1 zip file (to say c:\download\v29\) you should get 2 files, v29.mds and v29.mdf, do not extract, unpack or unzip any files from these files, they must remain as is.

Now is when you open the v29.mds in UltraIso, eg: run Ultraiso, File: open "c:\download\v29\v29.mds", then drag n drop the navboot file from dir "/V_2/RR/0101/BMWC01S/app_sw" from the mds file (not an unpacked dir on your PC), to the same dir as the unzipped v29.zip file "c:\download\v29\"

Copy the navboot to navboot.orig (as a safe backup) then mod your navboot file, then drag and drop it back into the still open (in ultraiso) v29.mds image.

Save the ultraiso image, File: Save as, "c:\download\v29\v29-modded.iso"

You should now have only 5 files in you v29 unzip dir (c:\download\v29\)

1: v29.mds
2: v29.mdf
3: navboo.orig (unmodded)
4: navboot (modded)
5: v29-modded.iso

Nothing else.

Use the v29-modded.iso to the create your CD. (with imgburn).

Indeed, this is why it does'nt work, as when you repack the file into an .iso the file format is now wrong and the nav computer will not recognize it as an update disc.

see above for the correct proceedure.

Not used magiciso, but I would imagine it does the same sort of thing.

hope this helps

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