Note: Newer models (such as the imageRUNNER Advance C7100 series and newer) often require updated SST versions (V4.22+) or the new "Remote Service Tool" (RST) that utilizes network connectivity rather than USB.
Furthermore, using SST to alter NVRAM values to bypass counters (like toner levels or drum life) is considered fraud. Service tools are intended for , not for circumventing consumable meters. Many modern Canon printers log SST access attempts in a forensic audit trail that Canon can retrieve during an RMA inspection. Canon Service Support Tool Sst Software V4.11 163
SST can backup and restore critical machine settings and RAM data, which is essential when replacing PCBs. Note: Newer models (such as the imageRUNNER Advance
As of 2025, Canon has released SST Version 5.x, which includes cloud-based authentication and encrypted firmware channels. However, remains in active use for three reasons: Many modern Canon printers log SST access attempts
| Error Code | Meaning | Solution | | :--- | :--- | :--- | | | USB communication timeout | Replace USB cable; disable power saving on USB root hub. | | #103 | Firmware file mismatch | The .bin file is not for this printer model. Re-download correct file. | | #205 | NVRAM checksum failure | The target printer has corrupted NVRAM. Perform "NVRAM Backup" from a working unit first. | | #401 | Security authentication fail | The printer’s TPM chip rejected SST’s signature. Use SST V4.11 163 in "Service Mode" (hold Stop key during connection). | | #FD | Flash memory bad block | The printer’s flash chip has physical damage. Replace main controller board. |