I have an iPad4 (no internal GPS) with the GNS1000 external GPS.

Hmm...I was the original poster on this topic.

I have tried every suggestion here and, in desperation, even sent my GNS1000 back to Transair and now have a new one.

Ansolutely nothing works, and I'm now giving up and will wait for the Andriod version of SD to come out.

I'm a little miffed as I bought the iPad specifically to run SD!

Hey ho...

Terence, go back to basics on this one.

Thanks for your reply Jon.

I installed the GPS app on my iPad.

The GNS1000 is paired and connected to my iPad, although strangely under Settings/Bluetooth it says GNS 1000 connected but the 'throbber' after the text 'Devices' is constantly going round and the iPad is constantly 'discoverable'. I don't know if that is relevant.

The GNS 1000 blue light is on steadily (as is the GPS indicator).

The GPS app reports a location that looks correct, but the red light does not flash (it's off).

If I force an update the red light flashes once, but no more.

This behaviour is the same as when I use SkyDemon, i.e. the aeroplane icon is yellow at first, and goes red after a few seconds, never to update again.

I also get 10m accuracy.