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nathan_mills, Other
Category: Digital Cameras
Satisfied Customers: 634
Experience:  Efficient Technician with more than 30 years of Experience.
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My Canon 5D mk 3 has started to display the red access lamp

Resolved Question:

My Canon 5D mk 3 has started to display the red access lamp on a permanent basis. Is there a fix I can perform?
Submitted: 11 months ago.
Category: Digital Cameras
Expert:  nathan_mills replied 11 months ago.

Hi Graham. Welcome to justanswer.

If you have another memory card then try replacing it with the one inside the camera. If you don't have any then format the memory card being used and then try.

Reply for further assistance.

Expert:  nathan_mills replied 11 months ago.

Is the issue still there?

Customer: replied 11 months ago.
I have tried various cards in both slots and the problem persists unfortunately.
Expert:  nathan_mills replied 11 months ago.

Try doing a factory reset.

Expert:  nathan_mills replied 11 months ago.
  • Press the MENU button
  • Press the [Q] button and select the SETUP tab
  • Scroll the dial to select the SETUP 4 tab
  • Highlight the “Clear all camera settings” and press SET button
  • When the display ask you, select OK and press SET button
Customer: replied 11 months ago.
Unfortunately that didn't work either.
Expert:  nathan_mills replied 11 months ago.

Try replacing the clock battery.

Customer: replied 11 months ago.
I obviously do not have one knocking about, will source one and get back to you. Thanks
Expert:  nathan_mills replied 11 months ago.

Graham, let me know when you have bought a new one. If you want I can guide you through on how to remove the clock battery and replace it.

Customer: replied 11 months ago.
I can do that ok, thank you, ***** ***** find out what type to order. Lust need to wait for the battery which is now ordered and when I get it is up to the post office. Thanks for the suggestions so far.
Expert:  nathan_mills replied 11 months ago.

Okay let me know the results.

Please rate the chat POSITIVELY so that I can get credited for my service.

Customer: replied 11 months ago.
Will do. Speak soon.
Expert:  nathan_mills replied 11 months ago.

Okay Graham.

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