EM05-E dont attach to Vodafone data only, AT+CGATT=1 fails

HenryN · November 27, 2024, 2:03pm

Hello,

we have an EM05-E which does not attach to “Vodafone DATA ONLY” via LTE. This card is a roaming card, and without voice support.

AT+CGATT=1 all times returns an error after 60 Seconds.

// Firmware
ATI
EM05EFAR06A06M4G_01.200.01.200
OK

// Enable verbose error values
AT+CMEE=2
OK

// Check SIM
AT+CPIN?
+CPIN: READY
OK

// Query IMSI. operator id: 90128, Vodafone's Global Data Service Platform, Roaming SIM
AT+CIMI
901280023145962
OK

// Check avalable operators. 3x LTE operators are here
AT+COPS=?
+COPS: (1,"vodafone.de","Vodafone","26202",7),(1,"o2 - de","o2 - de","26203",7),(1,"Telekom.de","TDG","26201",7),,(0-4),(0-2)
OK

// Check, that modem try to attach by self. yes
AT+CREG?
+CREG: 0,2

// Check state of attach. Not attached
AT+COPS?
+COPS: 0
OK

// Force attach. Give an error after 60 seconds
AT+CGATT=1
+CME ERROR: no network service

// Check indicators. 2: Signal good (0-5), 1: Registered to the roaming network
AT+CIND?
+CIND: 0,2,0,0,1,0,0,0
OK

// Get extended error
AT+CEER
+CEER: 6,259
OK

Same card in an EC25-E or EG25-G will attached and internet connection works.
An other card in this EM05-E works, also with roaming, operator 1nce, like vodafone data roaming.

Additional question:
We see “File Configuration Setting” (QMBNCFG) in the modem.
We have anabled for example the title “VF_Germany_VoLTE”, but not helps.
Need we such special file for “Vodafone DATA ONLY” here? And how we get it into the modem?

Henry

jfrog · November 27, 2024, 2:21pm

Please show results:

AT+CEREG?
AT+CGDCONT?
AT+CGPADDR
AT+QMBNCFG="List"

HenryN · November 27, 2024, 3:05pm

AT+CEREG?
+CEREG: 0,2
OK

AT+CGDCONT?
+CGDCONT: 1,"IPV4V6","","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
OK

AT+CGPADDR
+CGPADDR: 1,"0.0.0.0
OK

AT+QMBNCFG="List"
+QMBNCFG: "List",0,0,0,"ROW_Generic_3GPP",0x05010824,201806201
+QMBNCFG: "List",1,0,0,"TW_Mobile_China_VoLTE",0x05800301,202201111
+QMBNCFG: "List",2,0,0,"Bouygues_France_VoLTE",0x05800101,202203031
+QMBNCFG: "List",3,0,0,"VF_Germany_VoLTE",0x05010415,201705111
+QMBNCFG: "List",4,0,0,"Reliance_OpnMkt",0x05011B4B,201801051
+QMBNCFG: "List",5,0,0,"Smartfren_Indonesia_VoLTE",0x05800601,201705111

Commands says not attached, try to find operator again, no IP connection, no IP address, no MBN File used.

jfrog · November 27, 2024, 3:11pm

Configure your APN, restart the modem and re-check with

AT+CEREG?
AT+CGDCONT?
AT+CGPADDR

HenryN · November 29, 2024, 9:15pm

Configure APN:

AT+CGDCONT=1,"IP","priv4apn"
OK

Check

AT+CREG?
+CREG: 0,2

OK
AT+CGDCONT?
+CGDCONT: 1,"IP","priv4apn","0.0.0.0",0,0,0,0
+CGDCONT: 2,"IPV4V6","ims","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
+CGDCONT: 3,"IPV4V6","SOS","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,1

OK
AT+CGPADDR
+CGPADDR: 1,"0.0.0.0"
+CGPADDR: 2,"0.0.0.0,0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0"
+CGPADDR: 3,"0.0.0.0,0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0"

OK

Reboot modem:

AT+QPOWD=0
OK

POWERED DOWN

After some seconds, modem is coming back

AT+CEREG?
+CEREG: 0,2

OK

… 2: Not registered, but searching

AT+CGDCONT?
+CGDCONT: 1,"IPV4V6","","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
+CGDCONT: 2,"IPV4V6","ims","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
+CGDCONT: 3,"IPV4V6","SOS","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,1

OK

… configuration deleted. I think, it is normal after restart

AT+CGPADDR
+CGPADDR: 1,"0.0.0.0"
+CGPADDR: 2,"0.0.0.0,0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0"
+CGPADDR: 3,"0.0.0.0,0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0"

OK
AT+CGATT?
+CGATT: 0

OK
AT+COPS?
+COPS: 0

OK

… no addresses, not attached, no operator

Check, what modem is seen …

AT+COPS=?
+COPS: (1,"vodafone.de","Vodafone","26202",7),(1,"Telekom.de","TDG","26201",7),(1,"o2 - de","o2 - de","26203",7),,(0-4),(0-2)

OK
AT+CEER
+CEER: 5,29

OK
AT+CSQ
+CSQ: 31,99

OK
AT+CIND?
+CIND: 0,5,0,0,1,0,0,0

OK

… Indicatiors are very good. I can see Telecom network tower 30 meters from me.

jfrog · November 29, 2024, 11:22pm

+CGDCONT should be preserved, this is what we see with similar models like EC25.
The output provided shows that there is no MBN selected, so the user defined APN should be preserved.
I’m curious what is in AT+QMBNCFG="AutoSel" output.

HenryN · November 29, 2024, 11:46pm

AT+QMBNCFG="AutoSel"
+QMBNCFG: "AutoSel",1

OK

it is enabled.

The list is now

AT+QMBNCFG="List"
+QMBNCFG: "List",0,1,1,"ROW_Generic_3GPP",0x05010824,201806201
+QMBNCFG: "List",1,0,0,"TW_Mobile_China_VoLTE",0x05800301,202201111
+QMBNCFG: "List",2,0,0,"Bouygues_France_VoLTE",0x05800101,202203031
+QMBNCFG: "List",3,0,0,"VF_Germany_VoLTE",0x05010415,201705111
+QMBNCFG: "List",4,0,0,"Reliance_OpnMkt",0x05011B4B,201801051
+QMBNCFG: "List",5,0,0,"Smartfren_Indonesia_VoLTE",0x05800601,201705111
OK

I will try with AutoSel disable.

HenryN · November 30, 2024, 12:04am

jfrog, you are perfect!

Disable Autosel: AT+QMBNCFG="AutoSel",0
Restart modem: AT+QPOWD=0
Set APN: AT+CGDCONT=1,"IP","priv4apn"
Restart again: AT+QPOWD=0
Check IP:

AT+CGPADDR
+CGPADDR: 1,"10.97.217.93"
+CGPADDR: 2,"0.0.0.0,0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0"
+CGPADDR: 3,"0.0.0.0,0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0"

OK

The first time, I see an IP with this card in this modem.

Courios, the list is enabled:

AT+QMBNCFG="List"
+QMBNCFG: "List",0,1,1,"ROW_Generic_3GPP",0x05010824,201806201
+QMBNCFG: "List",1,0,0,"TW_Mobile_China_VoLTE",0x05800301,202201111
+QMBNCFG: "List",2,0,0,"Bouygues_France_VoLTE",0x05800101,202203031
+QMBNCFG: "List",3,0,0,"VF_Germany_VoLTE",0x05010415,201705111
+QMBNCFG: "List",4,0,0,"Reliance_OpnMkt",0x05011B4B,201801051
+QMBNCFG: "List",5,0,0,"Smartfren_Indonesia_VoLTE",0x05800601,201705111

OK

Some times before I try to disable it with AT+QMBNCFG="Deactivate". But after this all AT+CGDCONT=1,"... failed with ERROR. After a restart the first list was enabled again.