Subject: XTS5000 Firmware: Version Matrix, Upgrade Paths, and Host/DSP Constraints

4. The Tool: Motorola CPS (Astro 25 Portable CPS)

To update firmware, you need the Motorola Astro 25 Portable CPS (Customer Programming Software).

| Error Code | Meaning | Solution | | :--- | :--- | :--- | | Error #11 | Serial communication failure | Check RIB (Radio Interface Box) cable; ensure RIB has fresh batteries. | | Error #32 | Flashcode mismatch | The firmware requires a higher feature level than your radio is licensed for. | | Error #94 | Secure version downgrade prevented | Motorola’s "MACE" chip prevents rolling back encryption firmware to patch out security fixes. You cannot downgrade. | | "Unsupported DSP" | Host/DSP mismatch | Flash the correct DSP .dvp file immediately after the Host. |

Risk of Bricking: Because these radios are End of Life (EOL), if a firmware flash fails (e.g., due to a loose cable), the unit may become unrecoverable, as Motorola no longer supports factory repairs for this model. Key Considerations