This article provides a clear checklist to diagnose and resolve issues when a METOS device stops sending data or stops operating.
1. Check the Battery Voltage
A stable battery is essential for the proper operation of your METOS device. You can verify the battery level by:
- Checking voltage using a multimeter - LINK
- Running a sensor test - LINK In Progress
- Reviewing the last reported voltage values in FieldClimate
2. (If Not Using a METOS SIM) Verify SIM Card & Network
If your SIM card is from an external provider:
- Confirm that the SIM has active mobile data
- Check that your location has coverage for the network supported by your device:
- Go to FieldClimate → Device → Information
- Check the Modem type label
- Review the Modem Bands Compatibility Table of your METOS product - LINK
3. Reboot the Device
A full power reset may resolve firmware or transmission issues:
- Disconnect the battery
- Disconnect the solar panel
- Wait 30 seconds
- Reconnect the battery, then the solar panel
4. Check the Firmware Version
To ensure stable operation, confirm the firmware version:
- Go to FieldClimate → Device → Information
- Check the Firmware Version label
- Compare it with the latest version available for your model - LINK
⚠️ If your device is not up to date, it is highly recommended to update the firmware using the appropriate model‑specific link:
⚠️ Please note that updating the Camera requires updating the Control Unit (ECCU) as well; otherwise, the camera may not function correctly.5. Generate a Log (If the Issue Persists)
If your device still does not operate correctly, create a log and attach it to your support ticket.
Common Issues & Solutions
❌ Battery Depleting
(Example: 6.7 V → ~6.2 V) or below minimum operating threshold ➡️ Battery Thresholds – LINK
A depleted battery can occur for several reasons. The most frequent causes include:
- Solar panel is shaded
- Solar panel not detected
- Oxidized or loose battery cables
- Battery has reached the end of its lifespan
- Network issues causing the station or modem to hang
- Firmware bugs
Check the following
- Ensure the solar panel is not shaded
- Confirm the solar panel is plugged in correctly
- Verify the solar panel cable/plug is not oxidized
- Ensure the solar panel cable/plug is not loose
- Ensure the device is running with the latest firmware release → Refer to: “4. Check the Firmware Version”
Suggested solutions (if voltage is below the recommended threshold)
- Replace the battery or
- Recharge the battery
❌ No COM Port Appears in PI Service Terminal
Check the following
- Battery voltage:
- ~6.5 V → METOS 5, µMETOS, iMETOS 3.3 / ECO D3
- ~3.6 V → nMETOS, LoRAIN, LoRATH family
- Battery cable is properly connected
- USB cable supports data transfer (some USB cables are power‑only)
Suggested solutions (if the issue persists)
- Try using another battery
- Try using another USB cable
- Go to PI Service Terminal → Settings → Reset all settings
❌ LTE/NBIoT Module Rebooting (Hard Reset)... Failed
Check the following
- Battery voltage:
- ~6.5 V → METOS 5, µMETOS, iMETOS 3.3 / ECO D3
- ~3.6 V → nMETOS, LoRAIN, LoRATH family
- Firmware is up to date → Refer to: “4. Check the Firmware Version”
Suggested solutions (if the issue persists)
- Update the firmware → Refer to: “4. Check the Firmware Version”
- Try using a different SIM card
- Replace the modem or the board
Need Help?
If you encounter issues during this process or have questions about the information described in this page, please SUBMIT A TICKET to the METOS Support Center and include the logs in your request.
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