The SMS Lite status LED indicates these error codes to help identify issues:
Error Code – 2 Flashes – indicates the Modem will not power up.
This error code requires the SMS Lite be returned to QTech for service.
Error Code – 3 Flashes – indicates the Modem will not respond to commands.
This error code requires the SMS Lite be returned to QTech for service.
Error Code – 4 Flashes – indicates the SIM card is not inserted.
This error code may be fixed by checking the SIM card inside the SMS Lite.
Error Code – 5 Flashes – indicates the SMS Lite is not registered to the cellular network.
Normally caused by a weak cellular signal and may be fixed by using a higher gain antenna.
Error Code – 6 Flashes – indicates the cellular operator is not supported by the SMS Lite.
This error code may occur in some overseas locations.
Error Code – 7 Flashes – indicates the SIM card is currently busy.
This can occur briefly during the initialisation phase after the SMS Lite is powered up.
This error code may occur if the SIM card is not compatible with the SMS Lite.
Network Error Code – 3 Slow Flashes – an error code has been received from the phone network.
Indicates the SMS Lite tried to send an SMS but received an error code back from the phone network. Likely causes are having no credit on the SIM card or the cell tower being busy.