• Why v4.11.163 specifically: Earlier SST versions (v4.07, v4.09) failed on “163” series during the handshake step after an ACK error; this version patches that protocol timeout and adds retry logic.

  • If you instead meant a different angle (e.g., feature for developing a custom tool emulating SST, or a feature request for that specific version), please clarify.

    Assume you have a bricked imageRUNNER C5500i that hangs at “Please Wait.”

  • Start Flashing:
    Click “Start.” The process takes 10–30 minutes. Do not interrupt power or USB connection. SST V4.11.163 has a poor resume feature; a failure often means a full rewrite from scratch.

  • Completion:
    Printer will reboot automatically. Perform a “Clear All Settings” from service mode (COPIER > FUNCTION > CLEAR > ALL).


  • 2026