Firmware Version 1.0.4 includes the following fixes:
1. Fixes the rare issue of an error occurring during the transmission of images via Wireless LAN (FTP).
2. The reliability of USB data transfer has been improved between the Canon EOS 5D Mark III running firmware version 1.2.1 and the Canon Wireless File Transmitter WFT-E7 running firmware 1.0.4. For optimal performance be sure to update both devices to the latest firmware version.
Firmware Version 1.0.4 is for Wireless File Transmitter with firmware version 1.0.2. If the Wireless File Transmitter’s firmware is already version 1.0.4, it is not necessary to update the firmware. When updating your Wireless Transmitter’s firmware, please review the instructions thoroughly before you update the firmware.
When updating the firmware of your WFT-E7, please first go over the instructions thoroughly before you download the firmware.
Preparations for the Firmware Update:
After the downloaded compressed file (.zip) is extracted, a firmware folder is created.
* Extracting the downloaded file: Right-click the zip file, and then select Extract All to extract the file. The extracted folder contains the firmware (file name: WE700104.UPD / file size: 7,046,268 bytes) and instructions on the firmware update procedures (a PDF file in five languages: Japanese, English, French, Spanish, and Simplified Chinese).
Before starting the firmware update operations, please confirm the contents of the download, and carefully read through the firmware update procedures.
(The following is the history of past firmware updates.)