I'm sorry to hear that.
Update itself was ok. About 1 week after upgrade I wanted to check "panning assist" - the new option. Somehow I couldn't turn it off later. I tried different shooting modes, reset of settings - all failed. It ended up on body locked in 'bulb' mode and no signal from sensor (no image in in EVF). Btw, I've just got reply from service centre - they fixed it by loading new 1.4.1. After this situation I will not be too fast with trying new firmware. Better to wait few weeks if possible...I'm sorry to hear that.
OK it could be the firmware that bricked your camera, or it could be coincidental, or it could be that you inadvertently bricked it yourself by not following Canon's instructions precisely.
Did you:
Check the size of the downloaded file against the correct size, to check for a corrupted file?
Fit a freshly charged battery?
Remove the lens and all other accessories?
Is it possible that you:
Panicked when the update stalled, and turned the camera off?
Accidentally or deliberately touched a button or dial during the install process?
Not criticising - just trying to be helpful
Not defending Canon here, but I wonder how they compare with Sony, Nikon and Panasonic regarding "technical oversights". It's a very competitive market, where goods have to be rushed out and are increasingly complex, so I'd imagine that the other brands have similar issues.
SW is tough to get right. It will be interesting to see how AI can help debug it. One thing to miss a function/issue but another to brick a camera. You don't forget that.
AI is a wonderful thing, so yes I can't see any reason why it can't be used for debugging.
I find it crazy that *bricked* cameras can't be reset to the "out of box" settings, so that people can reinstall an older firmware version that works properly. If I bricked a camera, the first thing I'd do would be to remove and replace the battery, and attempt to install a previous version.
