Canon DLSR "Error 20" - seeking suggestions

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When you get the camera back, check your serial number.

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Anyways, no matter how Canon handles it, I hope that they are able to resolve your Error 20 issues once and for all.
Great advice. Thanks, I'll check the S/N when it comes back.
 
Got my 7D back some time ago now. It went to Canon Canada as I said earlier, and came back with a new mirror box and shutter. Same S/N (I checked). It seems to be working perfectly.
 
Got my 7D back some time ago now. It went to Canon Canada as I said earlier, and came back with a new mirror box and shutter. Same S/N (I checked). It seems to be working perfectly.
Glad to hear it! Enjoy. Cameron
 
https://www.shearwater.com/products/teric/

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