I purchased that controller and it has nothing to do with bafang. I opened it up to compare it with stock hd controller and internally it looked poorly and old like insides of a old hifi system from the 80s. It cant be programmed. Bafang tool, stc and speeed app cant connect. And after little use got e30hI'm seeing vendors selling Bafang BBSHD 52v 1000w 28a replacement controllers. Are these just a misrepresentation of the regular BBSHD 48v 1000w 30a controllers, or actually a new controller from Bafang?