I can not fly with the spark, it gives a lot of signal loss of the video. Here in Brazil it is CE (not FCC). It is horrible and can not fly.
Today I tried using an otg cable and I discovered that with the cable the video is perfect and the transmission is perfect! So I urge DJI to get this video wifi streaming to the phone, or to release the OTG.
I have an s7 edge, or will I be forced to buy iphone???
I've already tried switching to manual mode and choosing other channels. However via cable otg I noticed that all interference is gone! Please DJI release or...

So do, like many others are doing in this difficult times:

Get the DJI Go4 Version 4.1.15 on your phone and use the otg cable

Hello! friends I want to say that I need your help

Please ensure that your drone flies in a place without interference. Here are some suggestions:
1. I would recommend you enter wifi setting and check if most of the channels are green.
2. Please turn off the bluetooth devices around your spark.
3. I would recommend you change a mobile device for further check.
4. Do not shield the antenna of RC