Hello,
I took my old toy box Syma X3 (France). On my Devo 10 with the latest firmware (September 28, 2017), the protocol that works is
SymaX with the option
X5C-1 enabled.
I use the configuration file for the Syma X11 with FMOD, but the flips do not work.
Another happy player of Syma X3 has already made flips with this protocol?