I have just completed building my new S900 with A2, H3-3D & iOSD Mk2 running spektrum sats & DX8 for radio link.  I have ensured that the firmware on all units is current having reinstalled the latest firmware just to be sure.  My problem is that my iOSD is only partially functional.  It displays sats, voltage, mode, height & the artificial horizon appears to work fine. However, the distance from home point & heading info do not work.  There is nothing displayed next to the D or Az symbols and the diamond at the top of the screen does not move during flight. My tests were conducted with >7 sats & waiting for green flashes prior to flight.


Any help will be kindly appreciated.


Thanks
John

Sorry, I just realised I have posted this in the wrong section.  Please feel free to delete.