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Topic: Sim800L registration problem (FRANCE) - CREG=0,2 and CSQ= 0 (Read 1 time) previous topic - next topic


Hello everybody,

I have a big problem with my Sim800L ... my two Sim800L. The module don't connect to the network. The led blink all 0.8s.

I have an external alimentation (3.7v, 4200mAh X 2) with a regulator -> 4V.

RX (SIM800) -> TX Arduino (with dividing bridge -> 2,8v)
TX (SIM800) -> RX Arduino
GND (SIM800) -> GND Arduino
VCC (SIM800) -> 4 V

When a send command :

- AT
return OK

return OK

return +CPIN: READY

return 0,0 ... max value received is 11,0

return +CREG : 0,2

I have tried with an other SIM800L and with an other SIM card but I have the same result.

An idea ? =)


Signal strength seems OK.
Is your carrier SIM card active?
Does your carrier support 2G ?  (Coming to an end soon - replaced by 3G)
There are more commands to see what bands are available and recognised by the modem chip.
Ask the right question, which can be hard for beginners, but this doesn't mean that google is broken.
Experienced responders have a nose for laziness, (they were beginners once)... expecting the poster to contribute to the learning experience.

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