Speedlite EL-1 Firmware Update, Version 1.1.0

Firmware Version 1.1.0 incorporates the following fixes and enhancements.

1. Wireless communication stability has been improved.

If the flash's firmware is already Version 1.1.0, it is not necessary to update the firmware.

Preparations for the Firmware Update:
In the folder you downloaded are the firmware (EL111000.CFU / file size: 648031 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 be sure to carefully review the instructions to confirm your understanding of the firmware update procedures.

Firmware download link:
https://www.canon.com.au/speedlite-flashes/speedlite-el-1/support?option=drivers