Liberty - Helium Sensor Sensitivity and Calibration Issues

Issue:
Helium sensors may show errors, fail to calibrate properly, or become overly sensitive to noise. These issues can occur after a firmware update and may result in incorrect helium value readings (e.g., readings at 50% of the actual value) or unstable values.

Steps to Resolve:

1. Ensure the unit has the latest firmware version. Divesoft has released targeted improvements to helium sensor settings in firmware updates. Firmware can be updated using the Divesoft App or Divesoft Center.
2. Calibrate the helium sensors. To calibrate, navigate to the sensor calibration section in the device menu and follow the on-screen instructions, or refer to the calibration section in the device user manual.
3. Download all dive logs (or the entire folder) from the unit and send them to Divesoft support for analysis. The Divesoft App can facilitate this: connect the dive computer head unit via Bluetooth, then use the in-app reporting feature to submit the logs and describe the problem. If you prefer to send files directly, contact Divesoft support for the appropriate submission address.
4. Take a photo of the Sensors helium screen in the Service menu and send it to Divesoft support along with your dive logs.
5. To access the Service menu:
   1. Hold one button down.
   2. Double-press the second button.
   3. Simultaneously release both buttons.
6. Once inside the Service menu, navigate to Service menu → CU debug → CU sensors, then use the lower button to scroll to the Sensors helium page.