Handset Alarm After Firmware Update

Problem description:
A Liberty head may display a persistent alarm after a firmware update, sometimes linked to CU components or a faulty battery.

Possible causes:

• Firmware mismatch after incomplete update
• Battery degradation or failure.

Step-by-step troubleshooting:

• Restart the head and check if the alarm clears.
• Update all components (head, CUs, handsets) to the same latest firmware.
  • You can check the versions in startup or on the System Check menu screen.
• Charge your battery fully.
• If you see an alarm screen "Configuration lost", then you will need to verify / setup your user configuration. If the alarm repeats, more than once, please report an Issue using the DivesoftApp.

When to contact service: If the alarm continues even with a freshly charged battery and firmware, report an Issue using DivesoftApp and include all the divelogs and syslogs.