I bought SIM7000E module (link to the product). When I insert SIM, the indicating LED is still blinking 1/s. SIM card has no PIN.
I use this antenna link
If I insert this SIM into another SIM900A module, it works.
Here is some info:
Country: The Czech Republic, Europe
Power supply can supply enough energy
Output of some AT commands:
+COPS: (1,“230 03”,“230 03”,“23003”,9),(0,1,2,3,4),(0,1,2)
I spend a whole week to figure this out without any success.
Please give me some advice. Thank you