Raspberry Pi + UC20-G; Europe; SIM not inserted

[david.lechner]

Hi,

I want to enable internet on my Raspberry Pi, so I ordered Raspberry Pi 3G-4G/LTE Base Shield V2 and Quectel UC20-G Mini PCle 3G Module.

I followed the instructions from https://sixfab.com/ppp-installer-for-sixfab-shield/ and edited the /etc/chatscripts/chat-connect script to add the AT+CPIN command.

After I entered sudo pon, I get +CME ERROR: SIM not inserted^M.

The whole chat-connect script is:

# /etc/chatscripts/chat-connect ABORT "BUSY" ABORT "NO CARRIER" ABORT "NO DIALTONE" # ABORT "ERROR" ABORT "NO ANSWER" TIMEOUT 10 "" ATZ OK AT+CMEE=2 OK AT+CPIN? OK AT+CPIN="4231" OK ATE0 OK ATI;+CSUB;+CSQ;+COPS?;+CGREG?;&D2 # OK "at+cgdcont=1,\042IP\042,\042*A1*.net\042 OK AT+CGDCONT=1,"IP","\T",,0,0 OK ATD*99# CONNECT

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

# /etc/chatscripts/chat-connect ABORT "BUSY" ABORT "NO CARRIER" ABORT "NO DIALTONE" # ABORT "ERROR" ABORT "NO ANSWER" TIMEOUT 10 "" ATZ OK AT+CMEE=2 OK AT+CPIN? OK AT+CPIN="4231" OK ATE0 OK ATI;+CSUB;+CSQ;+COPS?;+CGREG?;&D2 # OK "at+cgdcont=1,\042IP\042,\042*A1*.net\042 OK AT+CGDCONT=1,"IP","\T",,0,0 OK ATD*99# CONNECT

The SIM-card is, of course, inserted.

It would be great, if you could help me.

Sincerely,
David

[Saeed]

Hi David,

Could you please remove the pin from the sim and try?

Best regards

[david.lechner]

Hi,

thanks for the quick reply!

I’m not able to do that.

But it works now. After I removed the shield from the Raspberry Pi, restarted, put it on again, do sudo pon, the connection is established!

But I got another problem. Everytime I restart the Raspberry, the interface is not comming up when the pin header and USB is connected. I need to remove everything again, restart it and then, sometimes, it works. If the shield is only connected via USB, everything works fine. Hence I think there is a problem with the pin header connection in combination with USB. Do I need to turn something off?

Best regards

[Saeed]

Hey,

Is there anything that is keeping the GPIO busy behind? Could you please check it?

[david.lechner]

Hey,

I just use SPI in addition to the Shield. Which GPIOs are crucial?

[Saeed]

Hi,
Here is the pinout diagram of the shield.

[Author]

Posts