: Using the wrong version of the Service Tool or clicking the "Main" reset button while the printer is not in the correct state can permanently lock the firmware (bricking), rendering the printer unusable. Safety & Malware
Before running the tool, disconnect Ethernet/Wi-Fi. Many malware strains need an internet connection to download secondary payloads.
The Canon Service Tool v4905 is a powerful software utility that provides a comprehensive set of diagnostic and repair functions for servicing and repairing Canon printers and other imaging devices. The tool is essential for authorized Canon service technicians, but it can also be used by advanced users and repair technicians to troubleshoot and fix problems with their own Canon devices. However, technicians need to be aware of the potential risks and limitations associated with the use of the tool and ensure that they follow proper security protocols and use the tool in accordance with Canon's terms and conditions.
No. The tool is Windows-only. Mac users need virtual machines (Parallels, VMware) or Boot Camp.