What Can I Do If an NB-IoT Module Cannot Report Data?
Ensure that the NB-IoT module has been bound to a device. The binding is performed when the NB-IoT module reports the first piece of data to the IoT platform. If the binding fails, the device is not activated on the platform. In this case, resolve the fault by referring to What Do I Do If an NB-IoT Module Failed to Bind to a Device.
Let's assume that the device binding is successful and the device is displayed as online on the platform. Check the following the items:
- Does the AT+NMGS command sent to the NB-IoT module end with \r\n?
Each command sent to the NB-IoT module must end with \r\n. If not so, the command is cached in the NB-IoT module.
- Can the payload of the sent AT+NMGS be parsed by the codec?
Use the codec test tool to check the payload in the code stream to be sent. Check whether the message structure is correct and complies with the definition in the product model.
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