Please check these for basic troubleshooting, if not done so:
- USB should be formatted with FAT32
- Size should not be 32 GB (16GB is best)
- Try changing the USB drive and update again
- Make sure that following file structure is there on root directory of usb:
File - config.nfm
Directory - pkgdb
... give these a try and let me know
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Driving BMW 320d 2009 E91 Touring (Germany)
iDRIVE with no Bluetooth / no USB
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