I have the same model, ipc-hfw3200c. Sometimes it stops blinking, can't isolate why. The screws you took out from outside the case, those go into a beam along the top of the chassis, that piece is attached to ring you are putting tape on, no? So what are you isolating from?
Here's my camera, so I have this correct, you are saying put tape all along the silver colored disc that attaches to the rails that ride along channels inside the body of the camera so metal that ring does not touch the case or do I have it wrong.
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