RE: Total lock out on JR12 2.4Ghz
The only issue I had was when I changed out the antenna on my 12x. I was messin around with some settings on a jet on the bench and the controls locked out. Upon further inspection, the tiny little cable connection that connects the antenna to the board popped off. That really gave me the creeps so I glued it back on. It aint commin off on its own again..
But, on another note, if you are using the cheapo Spectrum RX's you are asking for trouble. Even Horizon admits that these are not as good as their high end JR rx's.
Andy