@Uta said in LTE-M Connection Problem with BG96:

APN internet.m2mportal.de

Thank you so much for the answer. It worked after I changed the APN.

@Yassine-Amraue
I just tried to connect with NB instead which didn’t work either! Is Something wrong in my configs?

at+cpin?

+CPIN: READY

OK
at+cfun=0

OK
ATI

Quectel
BG96
Revision: BG96MAR02A07M1G

OK
at+gsn

860536040812077

OK
at+qcfg="nwscanseq",030303,1

OK
at+qcfg="nwscanmode", 3,1

OK
at+qcfg="iotopmode",1,1

OK
at+qcfg="band",0,0,80

OK
at+qcfg="roamservice",255,1

OK
at+qcfg="servicedomain",1,1

OK
at+cgdcont=1,"IP","internet.nbiot.telekom.de"

OK
at+cfun=1

OK
at+cops=?

+CME ERROR: 3
at+cops=1,2,"26201",9

OK
at+cind?

+CIND: 0,0,0,0,0,0,0,0

OK
at+cereg?

+CEREG: 0,0

@Yassine-Amraue
Hi Yassine,
Thank you for your reply. Here is what I recieved from the commands you suggested:

12:43:30.692 -> at+cfun=0

12:43:30.739 -> OK
12:43:32.005 -> at+cereg=3

12:43:32.005 -> ERROR
12:43:33.317 -> at+qcscon=1

12:43:33.317 -> OK
12:43:34.583 -> at+cscon=1

12:43:34.583 -> ERROR

I also tried similar commands (basically the same commands but with question mark instead):

12:56:38.725 -> at+cpin?

12:56:38.725 -> +CPIN: READY
12:56:38.725 -> 
12:56:38.725 -> OK
12:56:39.006 -> at+cfun=0

12:56:39.053 -> OK
12:56:40.319 -> at+cereg?

12:56:40.319 -> +CEREG: 0,0
12:56:40.319 -> 
12:56:40.319 -> OK
12:56:41.631 -> at+qcscon?

12:56:41.631 -> +QCSCON:0,0
12:56:41.631 -> 
12:56:41.631 -> OK
12:56:42.944 -> at+qurccfg=?

12:56:42.944 -> +QURCCFG: "urcport",("usbat","usbmodem","uart1")

@Uta I guess it stands for LTE-M for example in AT+COPS= 1,2, “26201”, 8 —> here the 8 is used to set LTE-M.
So my guess is that it responses at+cops? with the same coding numbers as well!

@Uta thank you for your fast reply! I indeed used B20. According to the Quectel’s Manual 80000 should be set for the B20. ( at+qcfg=“band”,0,80000,0 --> Screenshot)

@Uta
Hi Uta,

I wanted also to test the NB connection which did’t work for me and I switched back to the configuration for LTE-M. Now It dosen’t even connect anymore with the lTE-M config. I recieve CME ERROR 13 which is really strange! I wonder what I’m missing here!

Kind regards,
Kurosh

08:07:46.615 -> at+cpin?

08:07:46.615 -> +CPIN: READY
08:07:46.667 -> 
08:07:46.667 -> OK
08:07:46.948 -> at+cfun=0

08:07:47.000 -> OK
08:07:48.248 -> ATI

08:07:48.248 -> Quectel
08:07:48.248 -> BG96
08:07:48.248 -> Revision: BG96MAR02A07M1G
08:07:48.248 -> 
08:07:48.248 -> OK
08:07:49.532 -> at+gsn

08:07:49.532 -> 860536040826531
08:07:49.532 -> 
08:07:49.532 -> OK
08:07:50.834 -> at+qcfg="nwscanseq",020202,1

08:07:50.834 -> OK
08:07:52.166 -> at+qcfg="nwscanmode", 3,1

08:07:52.166 -> OK
08:07:53.417 -> at+qcfg="iotopmode",0,1

08:07:53.417 -> OK
08:07:54.757 -> at+qcfg="band",0,80000,0

08:07:54.757 -> OK
08:07:56.030 -> at+qcfg="roamservice",255,1

08:07:56.030 -> OK
08:07:57.346 -> at+qcfg="servicedomain",1,1

08:07:57.346 -> OK
08:07:58.659 -> at+cgdcont=1,"IP","internet.m2mportal.de"

08:07:58.659 -> OK
08:07:59.948 -> at+cfun=1

08:08:01.248 -> OK
08:08:01.248 -> at+cops=?

08:08:02.831 -> +COPS: (1,"Telekom.de","TDG","26201",8),(1,"Telekom.de","TDG","26201",8),(1,"Vodafone.de","Vodafone","26202",8),(1,"Vodafone.de","Vodafone","26202",8),(1,"Vodafone.de","Vodafone","26202",8),(1,"Telekom.de","TDG","26201",8),,(0,1,2,3,4),(0,1,2)
08:08:02.878 -> OK
08:08:07.346 -> at+cops=1,2,"26201",8
08:08:44.551 -> at+cops=1,2,"26201",8
08:08:50.717 -> at+cops=1,2,"26201",8
08:08:56.936 -> +CME ERROR: 13

@Uta said in LTE-M Connection Problem with BG96:

APN internet.m2mportal.de

Thank you so much for the answer. It worked after I changed the APN.

Hi,
I’m trying to connect to the LTE CAT M1 with BG96 , here is the set of AT commands that I used (see below) and the log responses. I expected at the end maybe couple of times 2, as the response to the command “at+cereg?” then it should connect and gives 5 back. But I recieve 2 couple of times then it even dosen’t search anymore and gives 0 back!

Dose anyone have an idea what could be causing this?

Regards,
Kurosh

08:57:19.196 -> at+cfun=1

08:57:20.489 -> OK
08:57:20.489 -> at+cpin?

08:57:20.489 -> +CPIN: READY
08:57:20.489 -> 
08:57:20.489 -> OK
08:57:20.806 -> at+cfun=0

08:57:20.848 -> OK
08:57:22.095 -> ATI

08:57:22.095 -> Quectel
08:57:22.095 -> BG96
08:57:22.095 -> Revision: BG96MAR02A07M1G
08:57:22.095 -> 
08:57:22.095 -> OK
08:57:23.416 -> at+gsn

08:57:23.416 -> 860536040710222
08:57:23.416 -> 
08:57:23.416 -> OK
08:57:24.707 -> at+qcfg="nwscanseq",020202,1

08:57:24.707 -> OK
08:57:25.988 -> at+qcfg="nwscanmode", 3,1

08:57:25.988 -> OK
08:57:27.320 -> at+qcfg="iotopmode",0,1

08:57:27.320 -> OK
08:57:28.599 -> at+qcfg="band",0,80000,0

08:57:28.599 -> OK
08:57:29.894 -> at+qcfg="roamservice",255,1

08:57:29.894 -> OK
08:57:31.216 -> at+qcfg="servicedomain",1,1

08:57:31.216 -> OK
08:57:32.505 -> at+cgdcont=1,"IP","internet.nbiot.telekom.de"

08:57:32.505 -> OK
08:57:33.783 -> at+cfun=1

08:57:35.090 -> OK
08:57:35.090 -> at+cops=?

08:57:36.603 -> +COPS: (1,"Vodafone.de","Vodafone","26202",8),(1,"Vodafone.de","Vodafone","26202",8),(1,"Vodafone.de","Vodafone","26202",8),(1,"Telekom.de","TDG","26201",8),(1,"Telekom.de","TDG","26201",8),(1,"Telekom.de","TDG","26201",8),,(0,1,2,3,4),(0,1,2)
08:57:36.637 -> 
08:57:36.637 -> OK
08:57:41.198 -> at+cops=1,2,"26201",8

08:57:44.283 -> OK
08:57:47.371 -> at+cind?

08:57:47.405 -> +CIND: 0,4,0,0,1,0,0,0
08:57:47.405 -> 
08:57:47.405 -> OK
08:57:50.698 -> at+cereg?

08:57:50.698 -> +CEREG: 0,2
08:57:50.698 -> 
08:57:50.698 -> OK
08:57:53.981 -> at+cereg?

08:57:53.981 -> +CEREG: 0,2
08:57:53.981 -> 
08:57:53.981 -> OK
08:57:57.281 -> at+cereg?

08:57:57.281 -> +CEREG: 0,2
08:57:57.281 -> 
08:57:57.281 -> OK
08:58:00.579 -> at+cereg?

08:58:00.579 -> +CEREG: 0,0
08:58:00.579 -> 
08:58:00.579 -> OK
08:58:03.871 -> at+cereg?

08:58:03.871 -> +CEREG: 0,0
08:58:03.871 -> 
08:58:03.871 -> OK
08:58:07.188 -> at+cereg?

08:58:07.188 -> +CEREG: 0,0
08:58:07.188 -> 
08:58:07.188 -> OK
08:58:10.489 -> at+cereg?

08:58:10.489 -> +CEREG: 0,0
08:58:10.489 -> 
08:58:10.489 -> OK