05-15-2023 12:52 PM
Hello -
I have been using my EOS 77D mostly for sports for the last three years. The camera began to stop functioning while taking pictures. I have read about cleaning the contacts on both body and lens and keeping a fully charged battery but that does not resolve the problem permanently. During a shooting session, I have to remove the battery and re-insert it. That usually helps, for a short while. Also, when I remove the battery without turning the camera off first, the LCD screen still stays lit. I have only gotten two error messages in the three years and I do not remember the error code. I recall it being something related to "not reading the lens".
Does anyone have suggestions as to what is causing this issue and how to resolve it?
05-15-2023 03:38 PM
Are you using a genuine Canon or a third-party battery or battery grip? Do you use a full-size SD card or a micro SD card with an adapter? Have you formatted the SD card recently, in the camera? Have you tried using a different battery, SD card or lens on the camera? Have you done a full reset on the camera?
05-16-2023 01:51 PM
Yes genuine Canon batteries and lenses. Full size SD.
I need to try a format from the camera and a full reset. How is a full reset done?
05-17-2023 01:14 AM
Check page 156 of your user's manual, or click the following link to download a copy from the Canon website.
09/26/2024: New firmware updates are available.
EOS R5 Mark II - Version 1.0.1
EOS R6 Mark II - Version 1.5.0
07/01/2024: New firmware updates are available.
04/16/2024: New firmware updates are available.
RF100-300mm F2.8 L IS USM - Version 1.0.6
RF400mm F2.8 L IS USM - Version 1.0.6
RF600mm F4 L IS USM - Version 1.0.6
RF800mm F5.6 L IS USM - Version 1.0.4
RF1200mm F8 L IS USM - Version 1.0.4
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