[Narek_M4]

Anyone know of any dealerships near the LA area who can revert the software update that caused the decrease in sound burbles and pops in the 2020 M340is? I had no idea that bringing into service would make them update it to this new software without my knowledge and now im trying to find out how to get it back to that it was without having to touch the DME or resort to tuning. I know they have the ability to do so, just trying to see if anyone knows of someone who will do it or any other suggestions.