501s firmware upgrade problem
501s firmware upgrade problem
I am trying to upgrade the firmware on my 501s to the superflyer firmware. This drone toiletbowls pretty bad after about 10m altitude. Doing the FC upgrade I have no problem. When I try the RX, when I try to connect I get "NO upgrade tool connected". So I try again, same thing. I tried reinstalling the drivers and I get the same thing. I tried using a different controller and I get the same thing. I don't know what to do. Can someone help?