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Contributor
14 Answers
- Posted on Aug 06, 2008
Re: My Canon 20D suddenly started saying "Error 99" and...
To isolate the cause of the issue, we suggest that you do the following:
- Turn off the camera.
- Remove the lens, battery, and CF card.
- Allow the camera to sit without power for approximately 20 minutes.
- Insert a fully charged battery, and turn on the camera.
- Depress the shutter button as you would to take a picture.
Does the “ERR 99′ message appear? If it does, then the camera should be serviced. If it does not, then please proceed to the next set of steps:
- Turn off the camera.
- Insert the CF card.
- Turn on the camera.
- Format the CF card in the camera.
- Depress the shutter button as you would to take a picture.
Does the “ERR 99′ message appear? If so, then the CF card is the most likely source of the issue. Try using a different card.
If the message does not appear, please complete the following steps:
- Turn off the camera.
- Clean the lens contacts by gently rubbing them with a pencil eraser or soft cloth. Be careful that you do not let any debris fall into the camera body.
- Reattach your lens.
- Turn on the camera.
- Depress the shutter button as you would to take a picture.
If the “ERR 99′ message only appears when one particular lens is attached, then that lens should be examined by a service technician.
If you see the “ERR 99′ with a different Canon lens attached, then the camera should be serviced.
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