I have experienced similar problems:
I got a silver 4 and a black 5 camera and both harnesses for the karma.
So far I haven’t had any luck making the 5 work with the drone, only with the grip.
The 4 silver works fine, it does get recognized by the drone and every component it’s up to date... but the record and mode buttons on the side of the controller don’t seem to work AT ALL. I can fly the 4 silver no problem, but it never activates the record on the camera while connected to the drone. On the grip I have no problem. I have a compatible SD card as well per gopro specifications from the list of compatible cards.
I’ve tried several times, taking the camera in and out from the housing, removing the battery and/or the SD card, removing the stabilizer and re-inserting it and nothing seems to work.
I believe I have a malfunctioning housing for the 5 black since that doesn’t get recognized on the drone. When it shows up after booting the drone up it says camera not detected or camera malfunction, even though it shows on the devices as up to date.
As why the record button doesn’t enable the recording on the 4 silver or let me change the mode (not responsive) I have no clue why could that be.
Any help would be greatly appreciated!
I’ve only had the system for about 2 weeks and gopro customer service doesn’t seem to know the reason for these issues either.
Thanks for reading