09-18-2022 07:07 PM
So I've also had this problem with my R5 and now my R3. Turn on the camera and nothing. If I remove and reinsert the battery? It turns on. When I got the R3 I updated the firmware and initially that seemed to fix it but I was shooting an event last night and it started this again. Turn on. Pull battery. Reinsert battery. I have tested this with and without the EF-R adapter and with several lenses (RF 24-105, EF 70-200, Sigma 24-70) and every situation I have the same issue.
I've seen that this was an issue and wondered if anyone has figured out what causes this? Thanks!
09-18-2022 07:36 PM
If you have GPS enabled when the camera is “OFF”, then disable it.
09-18-2022 07:46 PM
GPS is disabled. Did a factory reset on it and will reinstall the firmware.
09-19-2022 06:26 AM
Installing firmware on a camera that is exhibiting electronic malfunctions such as locking up is highly inadvisable. What if it decides to lock up in the middle of the installation? I’d try a new memory card before I’d try a firmware update, which rarely fixes electronic malfunctions, anyway. How could it?
Has the GPS always been disabled? If you did a factory reset, then give it some time to see if the issue resurfaces.
09-19-2022 01:01 PM
GPS has never been turned on.
11-05-2023 03:57 PM
I have the same issue. Only with the EF-RF adapter.
Sometimes it happens when i turn on the power switch - most of the time it happens in powersafe - trying to reactive the camera.
Firmware 1.5.1 seems to fix similar issues - but it didn't fix this for me.
Canon EOS R3, EF-RF Adapter, EOS 16-35mm and 100-400mm. The 16-35mm is the worst in this case...
Is there any solution?
02-03-2024 04:45 PM
Same issue for me on R3. First time it happened as I arrived somewhere, I thought the battery was dead, and said, 'I guess I won't be taking any photos today'. I've since learned the remove/reinsert battery trick. I'm on firmware 1.6.0. I don't know if it's relevant, but I use GPS mode 2.
02-03-2024 05:06 PM
Why don’t you want to try disabling GPS? It is a known issue. Try disabling it, as well as Wi-Fi and GPS, too. If that does not correct your issues, then please start a new thread.
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