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Recently when on holiday in Italy my 5DII stopped powering up. Turn the switch on and - nada. Pulling the battery and popping it back in brings the camera to life, however as soon as the camera goes in to sleep mode, or I turn the power off, the problem returns. Sometimes the camera shows Error 80 at this point:

Err 80

Shooting is not possible due to an error.
Turn the camera off and on again or re-install the battery.

I've seen various posts on the interwebs about pulling the clock battery and leaving the camera for a while - have tried this and also replaced the clock battery to no avail.

Has anyone else had this problem - did the body have to go back to Canon for repair or did you manage to fix it?

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This might help: tallyns.blogspot.ca/2009/10/canon-error-codes-revealed.html Have you tried operating the body without a lens on it or with a different lens? Malfunction related to the electric control of images has been detected sounds like a mainboard problem. Best to take it to a Canon service centre. –  BBking Oct 19 '12 at 1:22

3 Answers 3

up vote 5 down vote accepted

I've just got my camera back from repair and this was apparently caused by water damage to the DC-DC board, an expensive repair but I hope that my camera will now work well for some time to come! I've not yet worked out how the water got in - but I'm suspecting a damp camera bag after a seaside shoot.

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I had to take mine to a Canon service center as none of the methods suggested online (switch off, remove battery/lens, insert battery/lens, switch on) made the error code go away. I got the repair covered by manufacturer's warranty. Apparently Error 80 is a somewhat typical error code for this camera model.

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Just wanted to add to this thread in case my solution can help anyone else.

I just had a similar issue, occasionally got an Error 80 when powering up. I would get no display with any of my cards in, but if I took the card out my display would start up again, but obviously I couldn't take any photos. As soon as I put a card in, the display wouldn't work anymore, and the camera would focus but not fire.

Tried removing the batteries and leaving as well, which only temporary cleared the error message (but the issue remained).

THE SOLUTION Sent a message to Canon and their recommendation was: Turn off camera, remove batteries and compact flash, close all doors. Turn camera back on, and hold the shutter down for 30 seconds. Turn camera off, put batter and compact flash back in, and turn on.

Everything works as normal after that. Hope this helps!

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