I found that the pinout descritption on the 3DR store site on the GoPro compatible cable looked to be in error. I ohmed out the cable that was sent to me before I connected it from my GoPro to the MinimOSD and found that all except for the RED wire were used. The RED power wire from the MinimOSD did not go to any of the 4 contacts on the 2.5mm plug which is good because the GoPro cannot see voltage on any of the contacts.
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