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

Tagged: raspberry pi, UC20-G

This topic contains 5 replies, has 2 voices, and was last updated by Saeed 4 months, 2 weeks ago.

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31 January 2019 at 10:51 AM #36344

david.lechner

Participant

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

# /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

31 January 2019 at 2:45 PM #36351

Saeed

Participant

Hi David,

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

Best regards

31 January 2019 at 3:22 PM #36354

david.lechner

Participant

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

1 February 2019 at 3:12 PM #36373

Saeed

Participant

Hey,

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

7 February 2019 at 7:47 AM #36472

david.lechner

Participant

Hey,

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

11 February 2019 at 3:27 PM #36531

Saeed

Participant

Hi,
Here is the pinout diagram of the shield.
GPIO base shield

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