Upd09051.bin -

or older iDrive systems to improve stability with newer smartphone OS versions. How to Install: Format your USB: Use a blank thumb drive formatted to Download & Move: UPD09051.bin file directly to the root directory of your USB (don't put it in a folder). Update in Car:

Always ensure your battery is in good health before starting. If the car loses power during a firmware flash, it can "brick" the head unit, leading to a very expensive replacement. upd09051.bin