Bought, as open box last December. Just two days ago, the battery is working silly. I tried different batteries and all seem to doing the same. Camera will stop working randomly showing empty battery, I take the battery out, put it back and it works for one picture or many, or sometimes I have to take the battery in and out 2 - 3 times to make it work. I tried different batteries and no difference.
If you purchased the camera this past December, did you register it with Canon USA. for a warranty? If so, I recommend that contact Canon Support. This is only a user forum.
07/31/2023: New firmware updates are available.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
04/20/2023: New firmware version 1.4.1 is available for EOS R3
03/30/2023: New firmware updates are available.
2/07/2023: New product announcements!EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM