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| Typical Malfunctions | Possible Causes | Troubleshooting Methods |
| The device does not turn on autonomously | Battery is discharged | Charge the battery |
| The device only works when connected to external power | Battery is defective | Contact support service |
| The device vibrates and shows the icon:  | Battery is discharged | Charge the battery |
| After disconnecting the dosimeter from the charger, the battery level is below 100% | Battery not fully charged | Ensure the battery is fully charged until the blue LED turns off |
| 15 minutes after a full charge, the battery level is below 85% | Battery capacity has significantly decreased | Contact support service |
| The battery does not charge (the blue LED does not light up) | Temperature is above +40°C or below 0°C | Ensure the device is within the correct temperature range |
| The device does not turn on, vibrates continuously, and the blue LED is on | The device is in the bootloader mode | Contact support service |
| The device works, but the monitor shows zero (0.00) count rate | The device is malfunctioning | Contact support service |
| The dosimeter displays "Device is not calibrated" at startup | Calibration data is missing in the device memory | Contact support service |
| The device shuts down without showing a low battery message | The device is affected by static electricity | Protect the device from exposure to static discharges |
| The spectrum shows one dominant channel in a random part of the spectrum | The device is affected by static electricity | Turn the device off and on again. Protect the device from exposure to static discharges |
| Calibration coefficients a0 and a2 are zero | Calibration error | Perform a factory reset |
| The device displays: "Hardware Error [1XX]" | Non-volatile memory error | Turn the device off and on again. If the error persists, contact support service |
| The device displays: "Hardware Error [2XX]" | Bluetooth module error | Turn the device off and on again. If the error persists, contact support service |
| The device displays: "Hardware Error [3XX]" | Accelerometer error | Turn the device off and on again. If the error persists, contact support service |
| The device displays: "Hardware Error [4XX]" | Optical sensor error | Turn the device off and on again. If the error persists, contact support service |
| The device displays: "Hardware Error [5XX]" | Thermometer error | Turn the device off and on again. If the error persists, contact support service |
| The device displays: "Hardware Error [6XX]" | Option state error | Turn the device off and on again. If the error persists, contact support service |
In case of malfunctions, contact technical support via the links in the section: [Developer Information](developers.htm).
For other issues, report them to support service.
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