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  1. Audi A5/S5 Tech DIY
    My brother recently bought an Audi A4 2012 (MMI 3GBasic with NAV) with a big mess of problems. It's original version was P0206 and his friend tried to update it without checking the firmware version properly. he installed a K0900 High nav firmware and messed up the whole system, most of all the...
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