Just recently acquired a Noob V4 FC Diver and noticed the rotor was quite noisy. After a few times wearing it the rotor sound like it was loose so I removed the case back and discover there wasn't a screw or anything securing it. I was able to easily lift it off the movement. Any ideas on what happened and how I can fix this would be appreciated. I can see small teeth on the rotor and movement center. Is this the only thing securing rotor to movement? Also is there a way to quiet the rotor? Thanks!
What movement is this?Noob V4?
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