The latest update from BMW for the CIC system came on 01.10.2014 - code name UPD01008.
The latest update from BMW for the NBT system came on 25.08.2016 - code name UPD05074.
All you need is a FAT32 formated USB drive with enough free storage space (which won't be a problem, since the update is as small as 8.07 MB), a car that has a USB audio interface (included in optional equipment codes 6FL, 6NH, 6NK or 6NL) as well as the Control Display and iDrive.
First of all you'll have to download the new software from the BMW support site (Make sure to enter the correct VIN - last 7 figures - in the specified window on the BMW site, in order to get the proper software update for your vehicle) and copy it onto the USB drive (again, remember that it must be formatted as FAT32).
Note: If you have a retrofited CIC, use this VIN#: E797432.
After that, all you need to do is insert the USB drive in the USB audio interface and access the Software Update option in the Settings menu of the Control Display. The iDrive system will be automatically updated.Once the software has been updated, the system is restarted and data transferred from the USB device resynchronised where necessary. You'll just have to wait a few minutes until the USB device is operational again.
That's about it, and yes, it's as easy as that!
It seems that BMW has stopped this self-service and now you can get the newest Multimedia Software only by visiting the dealer.
There is no official explanation for this behaviour, but out of warranty, this software upgrade can be pretty expensive, so I suggest you doit only if you have big problems.
Warning:
"Software on USB device incompatible with this vehicle"
Disclaimer:
This is a DIY guide and, as such, you must be aware the procedures described here involve some risks. autoevolution cannot be held responsible for any possible damage that might result while following these instructions.
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