I picked up what appears to be a brand new DJI-branded controller here on the forums and I was having trouble getting it to work on the Inspire. I thought it might be a P3P controller, but the ports are all wrong. I compared it with the back of my stock controller and noted that it has Model: GL690A printed on it rather than GL658A (stock). I can't find a single thing on the google about this model... Does anyone have any thoughts?