M100 does not seem to work properly with the iOS version of DJI GO any longer. Problem viewing the video stream in the app.
No issue when using the DJI GO app for android though.

Anyone else had he same problem?

Email dev@dji.com about this, I had the same problem and they resolved it. They probably updated some data on their end.

Hi, i have M100 with the latest firmware and Z30 but i don´t have update via SD in Z30, in Cristalsky and Ipad only show video but don´t zoom or camera settins, update is impossible