RCD330 not working with reverse camera

When I untick byte 03 bit 6 the fault does not go away. I even tried clearing the error and it would still come up later. However, the reversa camera screen did stop showing when I put the van in treverse.
Well, a kind of unexpected that the fault is still there. I'm wondering if it's actually the fault that prevents the headunit to show the video. Are there any known coding options available? Are there any output tests available in VCDS, e.g. something related to video - which would just "force" video onto screen?

I even tried clearing the error and it would still come up later.
Yes, the fault memory always needs to be cleared to see the real result. Sometimes an ignition cycle off/on is needed to make fault reappear. The faults in the log won't clear by themselves.

I tried activating "6C" but I could not connect to it via VCDS. It was unreachable and it didn't show any meaningful error. Also it didn't help with the issue.
It was my wishful thinking that the AV adapter would have been the "6C"

I also see other people on the forums using this combination.
Yes, got a bit curious -
 
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