Hello,
I have some issues with SIM800L red module. I've connected module to LM2956 and I used LiPo 7,4V as a power source. I am using FTDI chip for UART communication and AT Command tester software.
I successfully connected to the module and received "OK" after "AT" command.
SIM800L has found four operators:
Available Networks:
Network Name->Era
Network ID->26002
Network Status->Current
Network Name->26006
Network ID->26006
Network Status->Forbidden
Network Name->Plus GSM
Network ID->26001
Network Status->Forbidden
Network Name->IDEA Centertel
Network ID->26003
Network Status->Forbidden
I am using T-Mobile sim card with PIN code. IMEI number received from module differs from number printed on SIM800L. I don't know if this is right.
When I send "AT+CGREG?" command I get:
+CGREG: 0,2
OK
The device is not registered and is currently searching for a new operator to which to register.
Signal strength is -73dBm.
Do You have any ideas why I cannot connect to any operator?