Hi Jared,

Your description and video are tremendously helpful. And, after looking at the code, I think I've found the issue with the IFD100's Restart message. 

I suspect your IFD440 does not have CrossSync enabled, nor need it be if you're not running two IFDs. However, the IFD100 is stubbornly expecting it to be on. We're going fix that. Before an IFD100 update is released (which could be later this week), you could enable CrossSync. I bet that would lead to the IFD100 behaving as you'd expect.

Here's my interpretation of what's happening in the video:

• The exchange of frequencies indicates that the IFD440's WiFi configuration allows the IFD100 iPad to connect.
• The exchange of your flight plan waypoints indicates that both IFD440 and IFD100 are the same version, have the same navigation database, and have RF Legs and WAAS settings in alignment.
• The "Restart IFD100 to align settings with host IFD" message indicates that the host (IFD440) and IFD100 "port configurations" differ. Within the port configurations is a value that we term AviSyncEnabled, which is based on the IFD440's CrossSync setting. In the code, the IFD100 expects the setting to always be ON. The difference triggers the Restart message to display every time, even after restarts.

Even with the message displayed, I believe that your IFD440 and IFD100 should play well together. And, again, in the short term you can enable CrossSync for the IFD400, which should lead to the removal of the message. In any case, later this week I think we'll have applied the fix, submitted the update to Apple, and have had Apple approve it for distribution. 

I'll post here again once the update has been submitted to Apple. And I'll post again when the IFD100 app is available on the App Store.

Separately, we'll be looking into your reported Bluetooth/WiFi/GPS indicator flicker.

Thank you for the information. Sorry for the inconvenience.

Gary