Hi all, I’m in need of your help, but first of all thanks for a great forum, I've been reading for a long time but this is my first post.

Secondly, I've spent a few days reading the Sat Nav upgrade forums, this included, as well as the faq.

I eventually decided to give it a go this morning. I have an M3 E46 '03, and have the MkIV DVD Nav System. The installed OS was originally 4-1/12. I decided to jump straight up to v31 as it appeared that should be ok, and downloaded the rar file from the front of this forum. Subsequently unpacked it (winrar) and burnt it to CD (imgburn). All seemed fine.

I then followed the instructions as per all the forums, (turn key to 1, let it settle, eject map dvd, insert os cd etc). It recognised the CD, flashed up a message that a CD had been inserted then the screen went blank.!!
I left it like this for approx 10 mins, then ejected the CD as nothing had happened and based upon the posts I've been reading I was expecting the message to tell me it was upgrading and would take approx 6mins.

Having switched it all back on, the Nav option is missing from the menu screen. There is no version in the Settings screen, the menus have all changed, and I'm left with just Computer, Telephone, Television and Set only. All of which appear to work albeit the look and feel is completely different.

Worse of all, the radio/CD does not work. I cannot even switch it on ! ! !

Anyone with ideas ? I can post some pics of the new screens if it helps.

Hoping someone can help.
Karl.