If you cannot access the firmware directly, contact your Canon reseller or service provider. They can provide the file or perform the update for you.
Open a web browser on your computer, enter the IP address of the Canon iR-ADV 4245, and log in as an administrator. Navigate to Updates: Settings/Registration License/Other Register/Update Software Initiate Manual Update: Manual Update Select Firmware: canon iradv 4245 firmware download install
If you have a specific firmware file provided by a technician, use the web interface from your computer. Canon User Manual Access Remote UI If you cannot access the firmware directly, contact