The software will only function if the printer is first manually placed into Service Mode Step 1: Enter Service Mode
A: This error message indicates that the version of the service tool you are using is not compatible with your printer model or firmware. It is the tool's way of saying it cannot communicate correctly. Do not attempt to force it. Canon Service Tool V5204 Download
Disconnect and reconnect the USB cable, restart the printer, and re-enter Service Mode. The software will only function if the printer
If you cannot find a safe download, or if V5204 doesn’t support your printer, try these options: Disconnect and reconnect the USB cable, restart the
The green power light should blink for a few seconds and then remain solid. Your computer may play a sound indicating new hardware is detected. If the light stays solid, you are successfully in Service Mode. Step 2: Running the V5204 Software Navigate to the folder where you extracted the tool.