topic Re: R6 Mark II power on and off in EOS DSLR & Mirrorless Cameras

EOS R6 Mark II powers on and off by itself

sschroeder — Tue, 04 Nov 2025 13:38:01 GMT

Recently, when my R6 Mark II is powered off, I noticed it will power on for about 1 or 2 seconds and then power of again. This happens about every 20-30 seconds. The only way to stop it is to take the battery out. It may be a coincidence, but I think this started after I upgraded the firmware to v1.6.0 several weeks ago. It does this enough that it will completely drain a fully charged battery in about 48 hours.

Any thoughts on what is happening?

Steve

Re: R6 Mark II power on and off

p4pictures — Tue, 04 Nov 2025 08:50:30 GMT

Do you have Bluetooth switched on? With Bluetooth on, the camera keeps the circuit live to allow the camera to be accessed from the Camera Connect App. I have been able to get the photos from my powered off camera in my camera bag using the app on my phone.

Re: R6 Mark II power on and off

Jkarl — Tue, 04 Nov 2025 14:08:06 GMT

This caught me with my R5 until I read the manual section on the WIFI. Now I take the battery out when I am done for the day just in case I forget to turn it off. 🙄

Re: R6 Mark II power on and off

sschroeder — Tue, 04 Nov 2025 21:37:13 GMT

Hmm. I'll check that. It's probably on, but has never caused a problem in the past several years. I guess something may have changed in the latest firmware that is causing it to act that way.

Thanks for the tip.

Steve

Re: R6 Mark II power on and off

sschroeder — Tue, 04 Nov 2025 21:38:29 GMT

I think it's been on for years, but never caused a problem. I wonder if the latest firmware version is making it act that way. I'll sure check and see.

Thanks for the advice.

Steve

Re: R6 Mark II power on and off

Waddizzle — Wed, 05 Nov 2025 00:06:50 GMT

“ I think it's been on for years, but never caused a problem. I wonder if the latest firmware version is making it act that way. I'll sure check and see. “

Your issue seems to be unique. So I doubt the firmware update has anything to do with it. But we have had a few posts about cameras locking up for no apparent reason. These issues pre-date the release of R Series cameras.

The issues seemed to coincide with the inclusion of Wi-Fi, and later on Bluetooth, integrated with the camera bodies. Smartphones are always hunting for a connection. They seem to find cameras and cause the camera to seemingly lock up.

it’s best to disable all wireless communications if you are not actively using them.