Funny you should mention this, I just dug mine out tonight. I have one that has never been flown. It is possible to update it to the Naza M-2 non-lite firmware. It has been out of support for quite some time, but there are quite a few videos on youtube about upgrading it, and getting it working on newer versions of windows. Planning on finishing off the build I started several years ago with a bunch of clearance "New" Old-stock parts including a DJI flamewheel 450.
LB