Ok, I was given a gimbal plus controller. Not sure what the controller is and what software it needs. I have tried Simplebgc & Brugi but all it does is sit there and do nothing!
It does look like one of the controllers we used to sell, and if it is not accepting any firmware because your gimbal controller is bricked then I suggest you try to burn a new bootloader onto it as that usually fixes most issues. I created a guide on how to do that a while ago here:
You will probably need some pin headers but you don’t actually need to solder them on as its possible just to hold it on while burning a new bootloader.