Cause: The USB drive is not FAT32, or the .dlu file is inside a folder.
Solution: Reformat the USB drive to FAT32 and place the .dlu file directly on the root.
Let’s assume you are an advanced user who has navigated the labyrinth, acquired the Service Support Tool, and found a legitimate version (commonly versions like System v23.04 or newer). What is the actual user experience? canon ir 2425 firmware download new
Advanced users with network access can update firmware via the Remote User Interface (RUI) : Cause: The USB drive is not FAT32, or the
This method avoids USB drives but requires a stable wired network—do not attempt over Wi-Fi. This method avoids USB drives but requires a
If your printer is connected to your office network via Ethernet:
If you don't have a support contract, call the dealer who sold you the machine. They have access to the Canon Service Portal (CCL-CSDS). They can legally email you the .bin firmware file or a USB updater tool.
Pro Tip: If you are an IT manager for a small business, ask your print vendor to perform the update remotely or on-site. This is often free if you buy supplies from them.