RE: Spektrum Telemetry module and iPhone App.
By radio, I'm guessing you mean the DX8 transmitter and I believe it is up to date. Besides, that shouldn't have anything to do with the STi application and certainly wouldn't cause the GPS module not to send data for the DX8 to read. Airspeed data was tested using a soda straw to blow air over the pitot tube, and since I have the altitude sensor in a pill capsule with a super thin golden rod extension a puff or drag would cause the altimeter to read correctly, voltages were also reading, just the GPS stayed a zero's. As soon as I easter egged the sensor the new one read. And the old one read fine when it was place back in the original aircraft.
Since I didn't have these issues in the past, I don't know where to look. Is there such a thing as Software rot?
KKKKFL