NB-IOT in Germany with Vodafone SIM

NB-IoT
#1

Hello,
i buyed the SARA AFF R410M Connected by Vodafone but can’t connect to the network with AT+COPS.
The module doesn’t report anything after +COPS, only after an additional new line it says “OK”.

The following AT Commands i tried with the Passthroug Sketch:

Summary 
AT
09:59:07.802 -> OK
AT+URAT?
09:59:08.808 -> +URAT: 8
09:59:08.808 -> 
09:59:08.808 -> OK
AT+USIMSTAT?
09:59:09.802 -> +USIMSTAT:  0 
09:59:09.802 -> 
09:59:09.802 -> OK
AT+CMEE=2
09:59:10.783 -> OK
AT+CPIN?
09:59:11.776 -> +CPIN: READY
09:59:11.776 -> 
09:59:11.776 -> OK
AT+COPS=2
09:59:12.776 -> OK
AT+CREG?
09:59:13.777 -> +CREG: 0,0
09:59:13.777 -> 
09:59:13.777 -> OK
AT+CGDCONT?
09:59:14.807 -> +CGDCONT: 1,"IP","dev.sodaq.com","0.0.0.0",0,0,0,0
09:59:14.807 -> +CGDCONT: 2,"IP","","0.0.0.0",0,0,0,0
09:59:14.807 -> 
09:59:14.807 -> OK
AT+CSQ?
09:59:15.775 -> +CME ERROR: operation not allowed
AT+COPS=?
10:00:28.854 -> +COPS: (0,"262 02","262 02","26202",9),,(0,1,2,3,4),(0,1,2)
10:00:28.854 -> 
10:00:28.854 -> OK
AT+CSQ?  
10:03:17.534 -> +CME ERROR: operation not allowed
AT+COPS?
10:03:25.373 -> +COPS: 2
10:03:25.373 -> 
10:03:25.373 -> OK
AT+COPS=4
10:03:57.032 -> ERROR
AT+COPS=4,2,"26202"
10:16:00.204 -> OK
AT
10:16:02.164 -> OK
AT+CSQ
10:16:07.486 -> +CSQ: 7,99
10:16:07.486 -> 
10:16:07.486 -> OK
AT+CREG?  
10:16:17.816 -> +CREG: 0,3
10:16:17.816 -> 
10:16:17.816 -> OK
AT+CGDCONT=1, "IP","nb.inetd.gdsp"
10:17:30.587 -> OK
AT+COPS=4,2,"26202" 
10:19:56.730 -> OK
AT+COPS=2
10:20:00.967 -> OK
AT+CFUN

10:20:18.688 -> ERROR
AT+CFUN?
10:20:23.171 -> +CFUN: 1
10:20:23.171 -> 
10:20:23.171 -> OK
AT+COPS=4,2,"26202"

10:20:36.480 -> OK
AT+CREG?
10:20:51.719 -> +CREG: 0,0
10:20:51.719 -> 
10:20:51.719 -> OK
At+CFUN?
10:21:45.894 -> +CFUN: 1
10:21:45.894 -> 
10:21:45.894 -> OK
AT+UBANDMASK? 
10:22:14.995 -> +UBANDMASK: 0,275063445663,1,185538719
10:22:14.995 -> 
10:22:14.995 -> OK
AT+CREG?
10:28:50.054 -> +CREG: 0,0
10:28:50.054 -> 
10:28:50.054 -> OK
AT+CSQ
10:29:11.074 -> +CSQ: 99,99
10:29:11.074 -> 
10:29:11.074 -> OK
AT+COPS=4,2,"26202"
10:34:36.185 -> OK
ATI9
10:34:39.907 -> L0.0.00.00.05.06,A.02.00
10:34:39.907 -> 
10:34:39.907 -> OK
AT+COPS=4,2,"26202"

I suggested that my APN was not correct but tried it with nb.inetd.gdsp and dev.sodaq.com.

Does somebody have any suggestions why the module doesn’t connect?

Best Regards

#2

Hi,

i have sodaq board and german vodafone NB-IoT sim Card. Do you find the correct APN?

Best regards

#3

Hi T_M,

i’m not sure, if the two apn’s i tried are the correct ones:

Which APN do you connect to?
Did you have to activate your card or did you start directly?

Best regards

#5

What has the printer manufacturer Canon doing with the LTE NB network (from Vodafone)?

#6

Hi TR_DG,

think your prompt reply. What you mean with activating the SIM card? I have Vodafone Nb iOT development kit with SIM card and cloud access. I am able to send text messages to the cloud. The second board that I have is sodaq Sara. I put the SIM card from Vodafone board to sodaq board and tried to send something to the cloud. But at+CSQ command return 99,99. I already tried all APN that you suggested. Do you have Idee?
Best regards

#7

I suggest you do once manual with AT commands the connection process.
AT+COPS can take up to 3 minutes to get a network connection.
You will get an OK when you are connected and should have an IP address.

To be able to in the future connect faster you can safe this operator profile.
The command to safe your profile:AT+CFUN=15

Kind regards,
Jan

#8

Hi @Jan,

even after 10 minutes AT+COPS doesn’t respond:

AT

08:03:03.430 -> OK
AT+URAT?

08:03:04.452 -> +URAT: 8
08:03:04.452 -> 
08:03:04.452 -> OK
AT+USIMSTAT?

08:03:05.461 -> +USIMSTAT:  0 
08:03:05.461 -> 
08:03:05.461 -> OK
AT+CMEE=2

08:03:06.453 -> OK
AT+CPIN?

08:03:07.457 -> +CPIN: READY
08:03:07.457 -> 
08:03:07.457 -> OK
AT+COPS=2

08:03:08.437 -> OK
AT+CREG?

08:03:09.426 -> +CREG: 0,0
08:03:09.426 -> 
08:03:09.426 -> OK
AT+CGDCONT?

08:03:10.433 -> +CGDCONT: 1,"IP","nb.inetd.gdsp","0.0.0.0",0,0,0,0
08:03:10.433 -> +CGDCONT: 2,"IP","","0.0.0.0",0,0,0,0
08:03:10.479 -> +CGDCONT: 4,"IP","live.vodafone.de","0.0.0.0",0,0,0,0
08:03:10.479 -> 
08:03:10.479 -> OK
AT+CSQ?

08:03:11.458 -> +CME ERROR: operation not allowed
AT+COPS=?

08:04:24.259 -> +COPS: (0,"262 02","262 02","26202",9),,(0,1,2,3,4),(0,1,2)
08:04:24.259 -> 
08:04:24.259 -> OK
AT+COPS=4,2,"26202"

08:18:03.193 -> OK
AT+COPS=4,1,"262 02" 
08:26:12.695 -> +CME ERROR: not found
AT+COPS=4,1,"26202" 

08:26:31.042 -> +CME ERROR: not found
AT+COPS=4,0,"262 02" 
08:26:44.930 -> +CME ERROR: not found

I stopped COPS after 14 minutes.

Could you please tell me the right apn and settings for the sim which was shipped with the SODAY AFF R410M connected by Vodafone?
Any other hints, i can try?

Best Regard

Connecting from Ireland
#10

For me, on a Sara N211 it automatically detects “nb.inetd.gdsp” as the APN and it works. But I can’t get it to work on the R410M either.

#11

Hi everyone,

I have done some testing in Germany.

It seems that there are some differences between The Netherlands and Germany.
For the Netherlands it’s faster to use the force operator feature like you all did.
In Germany the auto operator selection is the way to connect.

So instead of AT+COPS=4,2,"26202" do AT+COPS=0

Please let me know your results.

Best regards,
Jan