Originally Posted by gtncpa
I got the new chip in the mail for the navigation. Plugged it in and got an error. Tried a few things .. no good. Put back the old one .. and it works fine. maybe I got a bad SD ram. Any one else have this problem?
If the A4 card does not work but the A3 does, you have not yet upgraded SYNC to 3.5.1. You must do that in order to use the A4 card.