Firmware Version 2.0.5 incorporates the following fix:
- Fixes a phenomenon in which the image files cannot be transferred using the FTP protocol via USB cable after the Canon EOS 7D camera has established a wireless connection to the Wireless File Transmitter WFT-E5A.
Firmware Version 2.0.5 is for cameras with firmware version 2.0.3. If the camera's firmware is already Version 2.0.5, it is not necessary to update the firmware. Once the camera is updated to version 2.0.5, it cannot be restored to a previous firmware version.
Download Firmware Version 2.0.5 for the EOS 7D;
http://www.usa.canon.com/cusa/consumer/products/cameras/slr_cameras/eos_7d#DriversAndSoftware
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