I have a Quectel EG25 interfaced with an SBC other than a pi and have to interface with the modem only via the Main UART. However, I do not find any FAQs or threads on the forum to help me in setting up a new SIM only using AT interface via UART.
I see that the SIM shows inactive on the dashboard and AT+CREG tells me registration denied.
Could someone highlight the steps to setup a new sim so I can use a TCP based connection using the same? Or direct in the direction of where I can find relevant resources.
I’m in the US and would probably like to use the ATnT network.
Thanks in advance