EC25-E LTE CME Error 30

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:


Details about the modem:

Some Details:

Revision: EC25EFAR06A04M4G

+QCCID: 89492025195207247737



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

+COPS: 1

+CSQ: 13,99

+CGREG: 0,0

+CGDCONT: 1,"IP","","",0,0,0,0

+QCFG: "nwscanmode",3

+QCFG: "usbnet",0

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

+COPS: (1,"","Vodafone","26202",7),(1,"","Vodafone","26202",2),(1,"","Vodafone","26202",0),(3,"E-Plus","E-Plus","26203",2),(3,"","TDG","26201",7),(3,"E-Plus","E-Plus","26203",0),(3,"","TDG","26201",0),(3,"","TDG","26201",2),,(0-4),(0-2)

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.
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

Hi Kyson,

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


Then i reboot the Modem.

The Result from:
+COPS: 1,0,“”,2

+QCFG: "nwscanmode",0

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

+COPS: (1,"","Vodafone","26202",7),(2,"","Vodafone","26202",2),(1,"","Vodafone","26202",0),(3,"E-Plus","E-Plus","26203",0),(3,"E-Plus","E-Plus","26203",2),(3,"","TDG","26201",2),(3,"","TDG","26201",0),(3,"","TDG","26201",7),,(0-4),(0-2)

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

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!


i think that the settings fit so far:

+QCFG: "nwscanseq",0403010205

+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.

Hi Maik,

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


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!

Hello together,

thank you all for the help.

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