Excellent! Thank you! The pdf (standard Canon firmware instructions) and the .fir file were not readily apparent in the download folder, I was only finding the .dmg. All good now.
T:Having same issue. Canon site gave me a file named eosr5-v150-mac.dmg (using macbook) and I placed it on the SD card's root since I saw no stipulation about which to use. I did two downloads....one directly to the SD card and when that did not wo...