Sim900 command { AT+SAPBR=3,1,"CONTYPE","GPRS" } returns "ERROR"


#1

Hi All,

I am using SIM900 GSM module which connected with Arduino MEGA 2560. When I send the following command “AT+SAPBR=3,1,“CONTYPE”,“GPRS”” to set up connection type of GPRS, I got response “ERROR”.

Commands sequences:

  1. AT+CPIN?

AT+CPIN?
+CPIN: READY
OK

2 ) AT+CSQ

AT+CSQ
+CSQ: 18,0
OK

  1. AT+CGATT=1

OK

4 ) AT+SAPBR=3,1,“CONTYPE”,“GPRS”

ERROR

Could you please help to fix the issue?

Thanks,
Vladimir


#2

Have you updated SIM900 firmware to support HTTP?