IEEE1284 Parallel, Cross-Over Ethernet, or USB (Type A to B) How to Use (Basic Steps)
| Error Code / Message | Meaning | Fix |
|----------------------|---------|-----|
| #002 Error: Target not found | Printer not in download mode or USB driver missing | Re-enter service mode; reinstall Canon SST USB driver manually |
| #103 Flash Write Fail | Bad NAND block or incorrect partition map | Re-download partition file; try “Skip Bad Block” option (if available) |
| CRC mismatch (during load) | Firmware file is corrupt or for wrong model | Obtain clean firmware from a different source |
| SST Boot mode timeout (Ethernet) | Network firewall blocking UDP port 10100 | Disable Windows firewall; use a direct crossover cable |
| SST.exe has stopped working | Windows 10 compatibility issue | Run in Windows 7 compatibility mode + Admin rights | Canon Service Support Tool Sst Software V4.11 163