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Discussion Starter #1
Has anyone ever successfully downgraded firmware on their RNS-850?


I put a different RNS-850 in my Touareg since my original one is stuck halfway between 544 and 711. The new unit has 758 on it, but will not code properly to the vehicle (it is from a 2016 going into a 2013). Was curious if downgrading to 711 would fix.


Thanks
 
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