Question:Why does the NET light not flash after powering on for a period of time and cannot
access the Internet?
Answer:
In this case, the network connection may not be successful. Follow the steps below to
troubleshoot:
1. First confirm the hardware problem:
• Check whether the connected SIM card can communicate and surf the Internet
normally on mobile phones and other devices:
• Check whether the antenna is connected properly;
• Check that the NET light is flashing, and it is always on, indicating that it is not
registered to the network
2. After confirming that the hardware is OK, you can use the following command (AT
LOG) to further confirm the network situation:
*Check the firmware version information: AT+SIMCOMATI
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