solo gimball

I have a fully stock 3dr solo, black cube, oficial firmware etc. but I wanted to install a gimbal and i find this tarot t-2d i think and 3d printed a piece so it sits perfectly in the solo, i did all the wireing but theres an odd problem, using the controller i can tilt the camera downwards, but...

i have 2 x brand new solo gimballs for sale, new in box, still sealed. I am asking $150 US each for them plus freight. They are spare and would like to see them go to someone who might need them. I am located in Australia and happy to ship (registered tracked freight only) Thanks, Rob