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Frequent Contributor
Posts: 61
Registered: ‎07-19-2014

Re: 5D Mark III Screen Will Not Turn On / Work when NOT TETHERED

Turn the power off. Take the memory card(s) out, take the battery out. Put the battery back in. Turn the camera on. Sometimes you can have issues when the boot flag is set on a memory card.

 

Are you using the HDMI port?

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I'm a cinematographer in Chicago using mostly Canon gear. I also founded MKE Production Rental in Milwaukee.
New Contributor
Posts: 1
Registered: ‎11-10-2017

Re: 5D Mark III Screen Will Not Turn On / Work when NOT TETHERED

[ Edited ]

This worked. I spent all day trying to figure this out via manual, canon site and other blogs. This last comment was the finishing word. All of the other suggestions were valid and I did use them to troubleshoot the problem A Thanks for your comment Buffdog or JonKline

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