Hi, did you get your fixed? I got this jumper and it worked for a day then got this issue now. I played around the hardware.ini file and if i changed the value of CYRF6936 to zero since it doesn't need to be enable by default, it will then throw error for the next module is missing. So looks to me the whole 4in1 module is missing in my case. I definitely got a defective unit since this is brand new i just received. Want to know what happened to yours?