After trying to upgrade from version 0500 to 5570 (two steps 0500-->5150-->5570) the radio now is dead. The update first started good, but then several error messages saying "read error" occurred. If I am trying to use radio it says "not installed". I have tried to re run the update (5150) but now it says metainfo canot be anaysed, same error message for the 1110 update. A6, 2.0 TDI, No SDS in car, only NAV, Radio + CD changer (MMI high) Any ideas for this error ?