I'm guessing this is the same problem as the Garmin G1000 as this too comes up with a blank screen?

Thank you for the response. For some strange reason, I thought I had it working a few weeks back. Which led me to believe a sim update may have broken the ability for the two to talk to each other.

I can't get the Gns530 to show the full display on my tablet. It only shows the frame. All the buttons work fine and can be seen on the sim working. The app just wont display the gps. There are a few of the presets that do the same.
Could anyone help me?
Many thanks.