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I was shooting a birthday party the other night and the camera just stopped working. I first noticed the battery gage level was going up then all the way down. I looked up ERR 40 and it said on a site it’s a power source malfunction. Is there any way I can fix it or does it need to be returned? Thanks.

Hi! Here’s some basic troubleshooting information from Canon: ““Err 40” indicates that a malfuction related to the power source has been detected. Please follow these steps to attempt to resolve the error:

  • Power down the camera.
  • Remove the lens, battery and memory card.
  • Let the camera sit for 10 minutes.
  • Use a soft microfiber cloth to clean the contacts on the battery and inside the battery compartment.
  • Reinstall the battery.
  • Power the camera on.” If that doesn’t work it might be more serious component issue.