i just started using sim800l module. When I put the sim in the module, it should be blinking every 3 seconds but it blinks every 1 second in each interval, then stops for 3 seconds then continues to blink every 1 second and keeps repeating this. When I use command AT +CSQ, it return 0. What is my problem, how can i solve it. Thanks so much
1 second LED blink network status means no network connection. Shorten your jumper wires to 1cm or 2cm.
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