
However, bear in mind that applying an earlier build might not always be possible. On the other hand, downgrading the camera’s firmware can recover its functionality in the unlikely event the currently installed version is faulty or the device’s performance dropped after an upgrade. Updating to a newer firmware version than the one already installed on your camera can improve the device’s overall performance and stability, resolve various issues, and add support for newly developed features or enhance existing ones. Follow the procedure from Step (3) onward. Press the Cross keys to select and then press the. Press the Cross keys to select the "Firmware Ver.x.x.x" item and then press the button.ħ. Turn the Power Switch, and then press button to display the menu.Ħ. Insert the SD card with the firmware into the camera.ĥ. Rotate the Mode Dial to select mode (or one of the other modes in creative zone).Ĥ.

FIR firmware file to a SD card that has been formatted in the camera.ģ.

Even if I don't really know if it's working or not.- Corrects a phenomenon in which when using the camera with the EF-S 18-135mm f/3.5-5.6 IS USM or EF 70-300mm f/4-5.6 IS II USM lens, even if lens aberration correction is set to "Enable", correction will not be applied.ġ. It costs me however much less saying that it does not work, excluding warranty cases etc. Otherwise if they break their cameras in the downgrade process I should offer a free repair and should come up with shipping costs and the wages of the repairman in my service department. If I told people it would work I should as a manufacturer give the warranty to them that it will indeed work. If I had a company and would identify a scenario which 2 people does I would also tell people that it won't work. Testing software upgrades /downgrades just cost lots of money. They even say sometimes it is not recommended to upgrade from version x to version x+2 because they don't test every possibility but only the ones many people would do.


If a manufacturer says upgrading your firmware from version x to version x+1 will work that means only they tested the upgrade process and they found it be fine. Consider how many people go the way of downgrading. Why not? It would cost lots of money and the invest would not be on pair with the outcome. To tell people downgrading will work Canon should run software tests for that scenario which they apparently don't do. It's simple why Canon doesn't support downgrading or why they say it won't work. Wonder why Canon said you couldn't do it? I would not have tried. I just wanted some other feedback about that downgrade. So for that point, as Austin said, Canon is wrong.
