I have a Leica Q-P with firmware 3.1 and an iPhone 7+ with latest IOS updates installed (IOS 12.1.3).
First of all I could not get Fotos app working with previous version of the Leica Q firmware, ie. 3.0.
After I installed the latest Leica Q firmware 3.1 I could connect and download photos from my camera using Fotos app. However this did not last. After turning off my camera and back on again I could never get the camera connection from Fotos app.
The camera wifi network was recognised OK by my iPhone. To test I could connect to WLAN network of the camera and enter the camera's WLAN password under the QR code OK.
However when I added the Leica Q camera from Fotos and scan the QR code, after a spinning wheel action, the Fotos app report "Could not connect Check camera Wi-Fi is turned on and try again.
I uninstalled and re-installed Fotos app again. This didn't make a difference.
I was going to reset the camera as I suspect somehow the firmware stored an ill formed connection state persistently. But I would like to know if any of you experienced this problem.
So to sum up, have you ever run into a situation in which the first Fotos connection to a camera with newly installed framework 3.1 worked, but subsequent connections failed after the camera was turned off and back on again?