[Dabhand16]

EOS 40D Firmware Update Version 1.1.1

Firmware changes

Firmware update Version 1.1.1 incorporates the following fixes and improvements.

1. Fixes a malfunction that in rare occurrence causes a low battery indication to be displayed when using the EF 85mm F1.2L II USM lens. Depending on the battery check timing of the camera, the battery level displayed on the camera's LCD data panel may shows Battery will be exhausted soon or Battery must be recharged, even though the battery capacity is sufficient.
2. Fixes a malfunction that in rare occurrence causes an Err 06 Self Cleaning Sensor malfunction to appear on the camera's LCD monitor and LCD data panel, even when the Self Cleaning Sensor Unit is operating normally. This message may appear depending on the timing of when the camera is switch to the ON position.
3. Fixes a malfunction that prevents correct colors from being printed when direct printing. RAW images captured using the camera's custom Picture Styles (Emerald, etc.), which have been downloaded from Canon's Web site and registered under User Def. 2 or User Def. 3.
4. Modifies the level of subject brightness that causes the AF-assist beam to fire when using an external Speedlite.
5. Enables an external flash connected to the camera's synchro terminal to fire even when the camera's built-in flash is popped up.

Version 1.1.1 firmware is for EOS 40D cameras with firmware up to Version 1.1.0. If the camera's firmware is already Version 1.1.1, it is not necessary to update the firmware.

Before downloading the firmware update, please be sure to read the entire contents of this page.

Precautions

A power failure during the firmware writing operation may disable the camera.

* Use a fully charged Battery Pack or dedicated AC Adapter Kit (Optional) ACK-E2 for the firmware update.
* Do not shut off the power during the firmware writing operation.
* Do not open the CF card slot cover during the firmware writing operation.

Do not press any camera buttons during the firmware writing operation.
Firmware Q&A

Preparation for firmware update

The firmware update procedure is available in the PDF file at the end of this page. Please download the PDF file and read the procedure carefully before updating the firmware.

Firmware update procedures

In the following instructions, X.X.X or xxx indicates either the current firmware version or the firmware version for the update.


Full details on the Canon download page