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Cdearmas84 Cdearmas84 is offline
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Posts: 2
Join Date: Nov 2017
Car: 2010 bmw 335i
Exclamation JB4 question - 11-22-2017, 09:08 PM

I purchase my car with an already installed JB4, how do i know the firmware that is install and can i jump from an old firmware to a new firmware without having to change anything or having any problems.

I know for sure the firmware is really old since i can only get to menu 8 and i dont have the option to do BEF 4/2 since i try and i get transportation mode...

Thanks in advance
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