Most people are here to modify the settings in the car for simple things.
They only update when they have to put an upgraded module in.
From what I understand up dating modules requires long programming times
and you are advised to use a power supply to keep the battery alive during the process.
If you look you will find a few threads on this some also use Progman or
istap to update.
http://forums.bimmerforums.com/forum....php?t=1401774
http://www.e90post.com/forums/showthread.php?t=652293