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Originally Posted by KiwiJochen
Brief Instructions:
1. Downgrade the nav to v24 OS, so we can force an upgrade later on.
2. Make a special v28 OS disc where the ONLY change is the mono navboot file is replaced with the colour navboot file
3. Load new v28 special disc
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Hello Jochen, I am one of the "unfortunate", who did not check the MkIV-Navi type before purchasing on ebay - I've bought the BMWM01S unit! Yet I am lucky anyhow, because of guys like you ... and cato.boss.
My question is: where do I get to download such unaltered v24 and v28 OS versions?
Many thanks!