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6
votes
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Err 80 appears when I turn on my Canon EOS 5D Mark II
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 ...
4
votes
2answers
2k views
How can I fix a “Cannot communicate with battery” error on Canon 7D?
If I see the "cannot communicate with battery" error message on a Canon 7D, is there any way to fix it without sending it back to Canon?