I don't have an answer to your specific question.... but you cannot find another controller? I've seen some cheap v2's that were crashed in the past.... but the controller would be fine. Oh, I have also seen just the Smart v2 controllers for sale before, if that is what you are wanting :)
Be sure you have the propellers on the correct motor. There is one set of CW and one set of CCW and they are criss-cross to each other:
A B
B A
Hope this helps.
Well, I hope they use at least a 640 thermal sensor... anything less is a waste. Yes it would be very interesting to see a smaller very capable dual T setup!
Greetings, I too have the 640T and have flown many, many hours with drones, but my 640T will see limited use, since I consider it a specialty use drone. I will be happy to answer your questions, if I know the answers!
Interesting LapeerBird, a few of the negative reviews (I found this on Amazon) say they decreased the range... but that is a small percent of the reviews (I always check the 1 star reviews) They are cheap, so I guess i can do my own range testing?!