That interference board in the photo is wired correctly. Have you given any thought that it might just be the sd card you are using? Have a smaller Gb card from a different manufacture that you use for a test? Myself I use san disc 16Gb sd cards but heard there have been problems Samsung cards. At this point it's at least worth trying.
Whats up with this photo from DJI?
Looks like they are showing it the other way.