As there are several reports now of the R5 freezing and requiring battery removal and replacing to restart, let’s get some more information on what proportion of owners have the problem.
You didn't vote?Mine locked up when it overheated. (I deliberately shot 8K video of Old Faithful, and she nearly ran out the clock. Of course now my old faithful video is unwatchable by anything I own).
In order to switch modes back to something else I had to pull and re-insert the battery, at which point, of course the camera worked fine since it will work forever doing stills and 1080p.
You didn't vote?
I have still had an occasional lock up after I thought I had solved it all. I'm now using the Silver (regular) ProGrade CF Express card which I was told was fine because I never shoot video (except by accident). The times it occurred was not when the battery was low or when I was using an old battery. Don't know what else to say. Seems unpredictable. Doesn't even correlate with when I'm shooting at a high rate. It's not related to temperature extremes--been shooting in fairly moderate temps when it's occurred. I've almost run out of things to look for.I just received mine last week, so far, it hasn't ever locked up. Sometimes bad memory cards can lock a camera up. CF Express type B cards are relatively new and some brands have caused strange responses in the R5. I am hoping that there are some deals this week as Amazon Prime Day approaches. I like Delkin cards but a Prograde Cobalt would be fine. I already have a Prograde reader.
I'd definitely be contacting Canon about a repair or returning the camera for a replacement. A repair might be faster, they will likely replace the main board which is a quick and easy job. A return for replacement would probably let you do another return if you get another lemon.I have still had an occasional lock up after I thought I had solved it all. I'm now using the Silver (regular) ProGrade CF Express card which I was told was fine because I never shoot video (except by accident). The times it occurred was not when the battery was low or when I was using an old battery. Don't know what else to say. Seems unpredictable. Doesn't even correlate with when I'm shooting at a high rate. It's not related to temperature extremes--been shooting in fairly moderate temps when it's occurred. I've almost run out of things to look for.
Catherine
But this might be entirely a software based issue and quite a random event driven one at that, those can be buggers to find and resolve no amount of hardware swaps would fix.I'd definitely be contacting Canon about a repair or returning the camera for a replacement. A repair might be faster, they will likely replace the main board which is a quick and easy job. A return for replacement would probably let you do another return if you get another lemon.