GNSS_RECEIVER_FIRMWARE_MISMATCH
Applicable alarms (1)
Likely outcomes — click to expand
Based on 0 missions where this alarm fired in the last 90 days as of 2026-10-13
Aggregated from fleet operations and refreshed daily. Individual outcomes may vary by site and configuration.
Background
Section titled “Background”This alarm means the GNSS receiver firmware version does not match the firmware expected by the vehicle software. A successful software deployment should install the expected firmware and clear the mismatch.
This alarm blocks preflight until the firmware version is reconciled.
Troubleshooting Steps
Section titled “Troubleshooting Steps”graph TD
re-attempt-software-deployment["<small><b>Step 1</b></small><br/>Action: Re-attempt software deployment on the..."]
did-the-alarm-clear{"<small><b>Step 2</b></small><br/>Question: Did the alarm clear?"}
return-the-aircraft-to-service["<small><b>Step 3</b></small><br/>Action: The Aircraft may return to service."]
escalate-to-p2-embedded-linux{{"<small><b>Step 4</b></small><br/>Escalation: Escalate to P2 Embedded Linux On Call."}}
re-attempt-software-deployment --> did-the-alarm-clear
did-the-alarm-clear -->|Yes| return-the-aircraft-to-service
did-the-alarm-clear -->|No, the alarm persists afte...| escalate-to-p2-embedded-linux
style re-attempt-software-deployment fill:#dcfce7,stroke:#22c55e,color:#14532d
style did-the-alarm-clear fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style return-the-aircraft-to-service fill:#dcfce7,stroke:#22c55e,color:#14532d
style escalate-to-p2-embedded-linux fill:#fef3c7,stroke:#f59e0b,color:#78350f Hover or focus a block to preview it. Select the block to keep the preview open.
NOTE: Refer to OTA Deployment Failures for Aircraft for failures encountered when deploying.
Resolution note
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