QQ190 RTF random desynchs
That is strange. Are you running it on Betaflight 3.1.5 QQ edition? Some of the new versions of Betaflight can cause issues.
My suggestion is to use the TBS Agent found at agent.qq190racingdrone.com to flash the QQ 3.1.5 firmware onto your flight controller and then see if the problem goes away.
Let me know if that helps to answer your questions!
Anonymous commented on answer October 13, 2017
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I haven’t changed a thing since I got it, so whatever it came with back in July is what it’s running. I don’t like messing with software so other than assigning the TX I haven’t done a thing to it. I’ll check and see what it’s running though