Hey Folks - Why is it that I can not select the "CODE" Feature on my nav unit? '05 X5 4.8is.

I had sw 1/32 and updated to 1/71, when I made the update CODE was available for the first engine cycle or two now it is greyed out again. (With the original SW Version it was greyed out as well).

Thanks for any help. (I noticed on the post by Zebbe that his is greyed out as well)