Older versions of FreeFlight 6 can be downloaded here: You searched for freeflight - APKMirror
However, I do not know if each version of FreeFlight 6 requires a special firmware. And if, I do not know if it then automatically install the right version. People must try that out at own risk.
Remember to block automatic installation of new releases by FreeFlight 6 if ........... Good Luck.
Regards Leif.
