I have a 2000 X5 4.4 with the original navigation: 2-1/30. From looking around at this website I decided to try to upgrade the OS. I tried v26 at 4x - no go, at 1x - no go, and then v21 at 1x - also no go.

I do what the BMW notes say by turning the key on and launching Nav, hitting OK on the disclaimer. I eject the CD (the drive then sucks it right back in. I missed the 1st couple of times, now I grab it quickly). This causes a msg on the Nav display saying that the CD is gone. The 1st time I left this and went ahead and tried the OS CD. No change to the Nav display. The CD ejected in about 3 minutes, then got sucked back in (of course) so I let it go and it didn't eject again. So I ejected it at about 7 minutes. No change on the Nav display. I put the map CD back in and checked the version - still 2-1/30. I then found that Nav option was blacked out and inaccessable! So I tried again, but obviously w/o going into Nav first. It didn't eject on its own, so I did it after 7+ minutes. I checked the version, no change. I turned the key off and removed it, put it back in and turned the key on. Checked the version - no change. And no Nav option either. I figured I'd 'zombied' the nav. Then I went on an errand and the Nav worked just as it had prior to any of the above, but still at 2-1/30.

The above was all with the v26 at 4x CD. I went through the basic same scenarios again with the v26 @ 1x, then the v21 @ 1x. At no time did I ever get any indication on the Nav display that it was updating (as is indicated on the BMW notes), but I'm fortunately back to where I started and working OK again (at 2-1/30).

What's a poor guy gotta do to upgrade the OS? Should I not go into the Nav at the start? That didn't make a difference when I reloaded each of the CDs after the Nav option 'blacked out' and became unusable.


Thanks in advance,

- Glenn