[SilverArrowF48]

Sorry for bringing up an old thread, I have an issue with mine, I’ve already posted this in general forum but no replies, I’m getting no signal error , I got the error even before I coded it and still getting it after I coded it, I’ve put the old screen back but now the radio only works via idrive, probably I didn’t plug something back. Screen on: 65506844128 , my car is 03/2017 MY, thanks in advance for any help. Forgot to add I have entrynav. I read somewhere that I need an unlock code , is that true