The file with the extension .FIR is the firmware update. Do not try to open it. The .FIR file can only be processed inside your camera.
Inside the ‘update-procedure-pdf’ folder are five files. You only need the one ending ‘-en’. This gives you detailed installation instructions in English.
2) Charge your camera battery
Fully charge your camera battery before you begin. If you run out of power before the firmware update procedure is completed you might disable your camera – meaning it’ll stop working and has to be returned to a Canon Service Centre to see if they can rectify the problem.
Canon suggests running the camera from a mains power supply using an AC adapter kit. This is an expensive option (from £70 to £140 RRP) if it will only be used for firmware updates. In our part of Oxfordshire the mains power supply is somewhat unreliable, so we prefer to place our trust in a fully charged battery – we’ve had no problems so far!
Transferring from computer to camera
There are two methods of installing the firmware on your EOS camera, once you’ve downloaded the update to your computer. One is with a memory card – for which you’ll need a card reader or compatible slot in your computer. The other is with the EOS Utility software (either from the CD supplied with your camera or downloadable from the Canon website).
Both are equally good and both activate the ‘Firmware update program’ on the camera.
• Using a memory card
If you plan to use this method, there’s one more preparation step you need to take – you need to format a memory card for use.
First, copy all the images you want to keep from your CF card (or SD card for cameras using the smaller card) onto your computer – or use a brand new card. Next, insert the card into the same camera you're planning to update.
