*FOR NEW OWNERS HAVING A SIMILAR ISSUE*
Hello to all Solo Pilots here. Joined the forums today and a proud but slightly tired owner of a 3DR. It may be late to post but for all new owners like me if you are facing feed issues, here is how I resolved it.
Note that Firmware 4.0 on the GoPro does not allow the 3DR to turn it on therefore we would follow the sequence below:
Turn on GoPro
Turn on Solo
Turn on Controller, wait for Searcing GPS sign.
On your Phone/Tablet, connect to Solo's Wifi.
Once connected, Open the App and hit Fly.
Fly !!
Pointers:
If you are using the Gimbal and not getting feed, try testing your GoPro HDMI port elsewhere (TV, Computer, etc)
Make sure you are testing the HDMI and not the USB port (different ports and cables)
If your GoPro port works like a champ, try connecting without Gimbal to check if the feed works (this helps isolate the issue). If GoPro port works, you know where the issue is.
Before you throw it back at 3DR, try taking a closer look on the Gimbal to look for loose connections.
Disconnect and reconnect works sometimes.
Now if connecting directly does not work, you know the issue is on the inside. As per the Customer Care, here is a link which helps reset the HDMI cable (Warranty shall not be void for following this video)