I have the GH4 since well over a year. I tested the Wifi function when I got it and it worked quite well compared to the GH3. Now I had to film some squences on a crane and it would have been nice to use it, but it did not work any more. There were no previous connetions that I had before in the camera any more and when I tried to reconnect, the Panasonic Image App (Iphone 6) did not recognize the QR code and the GH4 did not provide any information (SSID and Password) for manual connection. It does not even provide a device name.

Any suggestions? Any help would be appreciated.