EC25-E LTE CME Error 30

IoT Modules LTE Standard Module
1

Hello, everybody,

we have installed the Quectel EC25-E on a Mini PC. This should establish an LTE connection. But every time I try to dial into the LTE network I always get the following error: +CME ERROR:30.

Ill try to check in with the following Command:

AT+COPS=1,0,“Vodafone.de”,7

Details about the modem:

Some Details:

**ATI**
Quectel
EC25
Revision: EC25EFAR06A04M4G

**AT+QCCID**
+QCCID: 89492025195207247737

**AT+CIMI**
262022507833259

**AT+CPIN?**
+CPIN: READY

**AT+QNWINFO**
+QNWINFO: "FDD LTE","26201","LTE BAND 8",3749

**AT+COPS?**
+COPS: 1

**AT+CSQ**
+CSQ: 13,99

**AT+CGREG?**
+CGREG: 0,0

**AT+CGDCONT?**
+CGDCONT: 1,"IP","m2mde.telefonica.com","0.0.0.0",0,0,0,0

**At+QCFG="nwscanmode"**
+QCFG: "nwscanmode",3

**AT+QCFG="usbnet"**
+QCFG: "usbnet",0

**AT+QENG="servingcell"**
+QENG: "servingcell","LIMSRV","LTE","FDD",262,01,1C54108,234,3749,8,2,2,34BE,-110,-11,-86,0,11

**AT+COPS=?**
+COPS: (1,"Vodafone.de","Vodafone","26202",7),(1,"Vodafone.de","Vodafone","26202",2),(1,"Vodafone.de","Vodafone","26202",0),(3,"E-Plus","E-Plus","26203",2),(3,"Telekom.de","TDG","26201",7),(3,"E-Plus","E-Plus","26203",0),(3,"Telekom.de","TDG","26201",0),(3,"Telekom.de","TDG","26201",2),,(0-4),(0-2)
2

Dear Mhlt,
Thanks for your inquiry in Quectel forum.
As you know that error code 30 means that no network service, so you can not establish a LTE connection.
image
Please check the following AT setting:
1).please change AT+COPS=0 (Automatic mode);
2).change AT+QCFG=“NWSCANMODE”,0,1
3)then reboot the module or AT+CFUN=0, then send AT+CFUN=1
image

3

Hi Kyson,

thank you for your fast reply.
I have set the follwing Options:

AT+COPS=0
AT+QCFG="NWSCANMODE",0,1

Then i reboot the Modem.

The Result from:
AT+COPS?
+COPS: 1,0,“Vodafone.de”,2

AT+QCFG="nwscanmode"
+QCFG: "nwscanmode",0

AT+QENG="servingcell"
+QENG: "servingcell","NOCONN","WCDMA",262,02,10D1,5E112A5,10564,331,2,-97,-5,-,-,-,-,-

AT+COPS=?
+COPS: (1,"Vodafone.de","Vodafone","26202",7),(2,"Vodafone.de","Vodafone","26202",2),(1,"Vodafone.de","Vodafone","26202",0),(3,"E-Plus","E-Plus","26203",0),(3,"E-Plus","E-Plus","26203",2),(3,"Telekom.de","TDG","26201",2),(3,"Telekom.de","TDG","26201",0),(3,"Telekom.de","TDG","26201",7),,(0-4),(0-2)

Why does the Modem want to use Access technology 2 instead of 7 ?

4

Dear MhlT,
Please make sure the SIM card can support LTE, and there have the LTE network signal in your test environment.
For module, you can check the following configuration:
AT+ACFG=“NWSCANSEQ” check whether the LTE is the top priority
AT+QCFG=“BAND” check whether the band configuration is correct
If the above configuration are correct, you can set AT+QCFG=“NWSCANMODE” to LTE to have a try. Thanks!

5

Hi,

i think that the settings fit so far:

AT+QCFG="NWSCANSEQ"
+QCFG: "nwscanseq",0403010205

AT+QCFG="BAND"
+QCFG: "band",0xd3,0x800135,0x0

I’ve set NWSCANMODE to LTE, but there’s been no change.
I have tested the same SIM card with a notebook without any problems. I have also tried other SIM cards with different providers.

6

Hi Maik,

please retry with AT+CGDCONT=1,“IPV4V6”,"" and power-cycling the device in case you still have the m2mde.telefonica.com APN there.

Regards,
Reinhard

1 Like
7

Dear MhiT,
After you change the setting, have you try to reboot the mdoule or send AT+CFUN=0,AT+CFUN=1 to let the module research the network ?
By the way, if you lock the module to LTE mode, it is better to use AT+CEREG? to check whether the module can access the network normally. Thanks!

8

Hello together,

thank you all for the help.

The Soultion is to set AT+CGDCONT … now its work.