Can't connect to any network with Quectel EC25

Technical Subjects
1

Hello All,

I cant get my Quectel EC25 to connect to any network, or even detect them.
My AT+COPS=? returns +CME ERROR: 3, what can it be? Below some outputs that may be useful:

AT+CGMR
EC25AFAR05A04M4G

OK
AT+CSQ
+CSQ: 99,99

OK
AT+COPS?
+COPS: 1

OK
AT+COPS=?
+CME ERROR: 3
AT+COPS=1,2,“26801”
+CME ERROR: 30
AT+CPIN=?
OK
AT+CPIN?
+CPIN: READY

OK

AT+CFUN?
+CFUN: 1

OK
ati
Quectel
EC25
Revision: EC25AFAR05A04M4G

I have a SIM card that works fine in my smartphone and in a router i have, and i have also just plugged the antenna’s i received from Sixfab.

What can i do?

Thanks in advance

2

Try these:
AT&F0
AT+CFUN=1
AT+QPOWD=1

3

Tried it just now, but still the same.
Additionally, i did these commands as well:

aT+QNWINFO
+QNWINFO: No Service

OK
at+csq
+CSQ: 99,99

OK
at+cops?
+COPS: 1

OK
at+cops=?
+CME ERROR: 3

Cant understand what is wrong!

4

Have you tried with a different SIM card?

5

Yes, i have tried with different SIMs, from diferent providers, all of them working in other devices

6

Do you realize that you are trying to use the North American model in Europe?
What frequency band do you think your modem will operate in?

1 Like
7

Running the command at+qcfg=? it tells me that it supports all bands, is this not true?

at+qcfg=?
+QCFG: “gprsattach”,(0,1)
+QCFG: “nwscanmode”,(0-8),(0,1)
+QCFG: “nwscanseq”,(00-0102030405),(0,1)
+QCFG: “servicedomain”,(0,1,2),(0,1)
+QCFG: “roamservice”,(1,2,255),(0,1)
+QCFG: “band”,(0-200),(0-7FFFFFFFFFFFFFFF),(0-7FFFFFFFFFFFFFFF),(0,1)
+QCFG: “rrc”,(0-4)
+QCFG: “msc”,(0-2)
+QCFG: “sgsn”,(0-2)
+QCFG: “hsdpacat”,(6,8,10-24)
+QCFG: “hsupacat”,(5,6)
+QCFG: “pdp/duplicatechk”,(0,1)
+QCFG: “tdscsq”,(0,1)
+QCFG: “airplanecontrol”,(0,1)
+QCFG: “ledmode”,(0,1)
+QCFG: “ehrpd”,(0,7)
+QCFG: “usbid”,,
+QCFG: “usbee”,
+QCFG: “usbnet”,<0-2>
+QCFG: “usbcfg”,,,,,<at_port>,,,
+QCFG: “urc/ri/ring”,(“off”,“pulse”,“always”,“auto”,“wave”),(1-2000),(1-10000),(1-10000),(“off”,“on”),(1-5)
+QCFG: “urc/ri/smsincoming”,(“off”,“pulse”,“always”),(1-2000),(1-5)
+QCFG: “urc/ri/other”,(“off”,“pulse”),(1-2000),(1-5)
+QCFG: “risignaltype”,(“respective”,“physical”)
+QCFG: “urc/delay”,(0,1)
+QCFG: “agps/string”,(0,1)
+QCFG: “cdmaruim”,(0,1)
+QCFG: “cmux/urcport”,(0-4)
+QCFG: “ModemRstLevel”,(0,1)
+QCFG: “ApRstLevel”,(0,1)
+QCFG: “ltectcc/smsstorage”[,(0,1)]
+QCFG: “noauthcheck”,(0,1)
+QCFG: “nwscanmodeex”,(1-63)
+QCFG: “oostimer”,,,
+QCFG: “diversity”,(0-1)
+QCFG: “ppp/termframe”,(0,1)
+QCFG: “nwoptmz/acq”,(0,1),(60-16777200)
+QCFG: “ims”,(0-2)
+QCFG: “pcmclk”,(0,1)
+QCFG: “tone/incoming”,(0,1)
+QCFG: “rssi”,(0-20)
+QCFG: “cdmasms/cmtformat”[,(0,1)]
+QCFG: “ltesms/format”[,(0,1)]
+QCFG: “amrcodec”,(0-255)
+QCFG: “apready”,(0,1),(0,1),(100-3000)
+QCFG: “sleepind/level”,(0,1)
+QCFG: “wakeupin/level”,(0,1)
+QCFG: “urc/cache”,(0,1)
+QCFG: “thermal/modem”[,,,]
+QCFG: “thermal/limit_rates”[,]
+QCFG: “lte/bandprior”,(1-43),(1-43),(1-43)
+QCFG: “codec/powsave”,(0,1)
+QCFG: “qmisync”,(0,1)
+QCFG: “disrplmn”,(0,1)
+QCFG: “vts/async”,(0,1)
+QCFG: “urc/ri/pin”,(“uart_ri”,“uart_dcd”)
+QCFG: “iproute_enable”,(0,1)
+QCFG: “imsreg/iptype”,(0,1)
+QCFG: “stkauto/setupmenutr”,(0,1)
+QCFG: “eps/guti_enable”,(0,1)
+QCFG: “qcautoconnect”,(0,1)
+QCFG: “ftm/mbim”,(0,1)
+QCFG: “volte/disable”,(0,1)
+QCFG: “multi_ip_package”,,<package_max_len>,<package_max_count_in_queue>,

8

No, it tells you the supported format for write command(s).
If you want to read, use AT+QCFG="band". Please refer to the manual(s).

1 Like