* Please follow the below video guide step by step to upgrade the firmware.
https://www.youtube.com/watch?v=lPltiI5t6PI
* The firmware can be updated using Lens Station. Please download Lens Manager, the dedicated software for Samyang Lens Station.
For more information of Lens Station and Lens Manager, please visit : http://bit.ly/2JOdzDD
* Please check the firmware version of your lens from Lens Station first.
You will not need to install the update if the firmware listed below is already installed.
* Should you have trouble installing the firmware, please contact asmaster@syopt.com