I can only imagine. I had a similar occurrence - but mine involved lost transmission and I heard it...but couldn't find it in an urban, businesses-y district. RTH and out of no where Mavic 2 Pro arrives. I watched the video to see what had happened. Fortunately, I lost only the transmission...
I am looking for a GL300F for my Phantom 4 Pro+. I have the GL300E but cant use it with some third party apps that I need. So, I need to supplement. Do you still have a gl300F to sale?