Originally posted by noblepa A few caveats: make sure your batteries are charged. The update only takes a few minutes, but if the battery dies during the upgrade, you may have a very expensive paperweight. This is NOT covered under the warranty.
Second, make sure you put the update file in the root directory of the card, not the DCIM or any other folder. The camera only looks in the root for an update file when powering on.
The downloaded file is a self-extracting zip file. You must execute it on your PC to extract the update file first. It is that resulting update file that you put on the SD card, not the downloaded file.
And don't forget to wipe the file from the memory card when you're done or it will keep trying to update every time you turn the camera on!