Ok, sorry - I thought you were on a tablet also - sorry if I missed that earlier...
I think in this case, the staff at iFly would be the subject matter experts.
I have only gone with the APP on a tablet the entire time I've been a iFly user.
I do understand your frustration with the Stratux. There is actually ANOTHER place on the stratux page to recalibrate besides the artificial horizon page...if you can get to that one, it may help as well. I did not think that would make a difference, but it does. I will have to go find the steps to get there, as I posted them on one of these pages previously with screen-by-screen photos of me doing it...it works. The page with the artificial horizion is the quick way to do it, but the other way, which takes a bit longer and which should only be completed on the ground, is more comprehensive....more to follow.
Another obvious question - your antennas are still connected to the box, right? Sometimes they do come loose, as has happened to me. An easy fix.
The shut-down is (in my opinion) an important step...you should see the flashing lights on the back of your machine for about 5 seconds or so before it stops and the fan stops as well - that has helped with mine - made all the difference.
Sorry for all your troubles...I wish I could help more. Again, I might try asking the staff here for directions about how to shut down the STRATUX from the screen.
Q for you. With the 740, do you upgrade through all the versions like we do on the APP? Do you have to connect it to get all the improvements and modifications? That helps with bugs, anomilies and other disconnects....we are now up to Version 11.
Best of luck - Mike N714AJ