I need someone to upload the stock flight controller firmware and parameters files for a open source Cheerson CX-20 quadcopter. I installed Mission Planner from Arducopter and, like a bull in a china shop, I accidentally let it UPDATE as soon as it connected to my quad. Now it won't ARM, it won't go into compass calibration mode, and I've TRIED updating the firmware multiple times with ones I've found over the internet, but it still won't work. Can someone post the firmware and parameters for this machine? I have the open source version (from what the seller told me).
This is what I bought.... https://www.amazon.com/gp/product/B00P0SS99Q