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B-L462E-CELL1 not connecting to TruPhone

Clark Sann
Senior

Just received this and it doesn't connect. I contacted Truphone and they were not much help. They did mention to make sure the apn is iot.truphone.com.

I know almost nothing about this device and the instructions are sparse but I did find a menu item for Cellular Service. It did not have anything in the apn field. I set the menu as follows:

Sim Slot 0: 1 (MODEM EMBEDDED SIM)

APN: iot.truphone.com

CID: 1

username: 

password: 

modem target_state: 2

attachment timeout: 180000 ms

Network register mode: 0 = Auto

Operator name format: 9 = Not present

Operator name: 00101

Access techno present: Not present

Network register mode: 7 = CatM1

Low power inactivity timeout: 1000 ms

NFMC activation : 0

It still does not connect. Are these values ok?

Also it seems the my.murata.com website is not accepting new logins. So how can I get further information about this board?

31 REPLIES 31

Solofo

Yes, I am aware of that webinar. I registered for it a couple of days ago but got no login details.

I will watch it live when it comes out on demand.

Thanks for participating in it!

JCouz.1
Associate

Hi,

I am having the same issue in Australia.

   +CEREG: 2,3<CR><LF>

ATCModem:NetworkState (EPS) = REGISTRATION_DENIED

The Truphone SIM is activated.

Australia is covered according to https://www.truphone.com/things/plans/coverage/?feature=LTE-M

I have tried the unit with the embedded sim and two local sims. I have tried all combinations of tech.

None of the SIMs have registered any network traffic at all.

I have run it >10 times and have let it run for long periods.

I have also tried only the embedded SIM and only the SIM socket at other times.

I have tried in two locations, both with good reception.

Here are my current settings:

Sim Slot 0: 0 (MODEM SOCKET)

APN: iot.truphone.com

CID: 1

username:

password:

Sim Slot 1: 1 (MODEM EMBEDDED SIM)

APN: iot.truphone.com

CID: 2

username:

password:

modem target_state: 2

attachment timeout: 180000 ms

Network register mode: 0 = Auto

Operator name format: 9 = Not present

Operator name: 00101

Access techno present: Not present

Network register mode: 7 = CatM1

Low power inactivity timeout: 1000 ms

NFMC activation : 0

I have also set NWOPER=TRUPHONE

$>at at%nwoper?

   ATParser:*** SEND (size=11) ***

at%nwoper?<CR>

   <CR><LF>

   %NWOPER: "TRUPHONE"<CR><LF>

   <CR><LF>

   <CR><LF>

   OK<CR><LF>

When I try the at%ceer? command I appear to get a truncated output, see below

$>at at%ceer?

   ATParser:*** SEND (size=9) ***

at%ceer?<CR>

   <CR><LF>

   ATParser: Big frame (display deactivated)

   <CR><LF>

   OK<CR><LF>

Firstly, how can I enable the "Big frame" display?

Secondly, any update on the best process to address this issue?

Thanks in advance,

Jim

Aeh1
Associate II

Hi, I', In Thailand and also in Truphone list

I also got

ATCModem:NetworkState (EPS) = REGISTRATION_DENIED<LF><CR>

Firmware out of the box haven't been updated yet.

Anyone can tell me how to set APN for 2 sim (eSim and external plastic sim)?

If I cannot make Truphone work, I will try external sim card, I have TRUE(Operator in Thailand) NB-IoT and LTE-M1 sim card.

How to get below information? I used Keil not STM32IDE

Sim Slot 0: 0 (MODEM SOCKET)

APN: iot.truphone.com

CID: 1

username:

password:

Sim Slot 1: 1 (MODEM EMBEDDED SIM)

APN: iot.truphone.com

CID: 2

username:

password:

modem target_state: 2

attachment timeout: 180000 ms

Network register mode: 0 = Auto

Operator name format: 9 = Not present

Operator name: 00101

Access techno present: Not present

Network register mode: 7 = CatM1

Low power inactivity timeout: 1000 ms

NFMC activation : 0

I DO NOT GET any answer from ceer?

at at%ceer?<CR><LF>

1/28/2022 03:36:43.080 [RX] - <CR><LF>

  ATParser:*** SEND (size=9) ***<LF><CR>

at%ceer?<CR><LF><CR>

  <CR><LF><LF><CR>

  %CEER: 1<CR><LF><LF><CR>

  <CR><LF><LF><CR>

  OK<CR><LF><LF><CR>

Also change from "DEFAULT" to "TRUPHONE"

1/28/2022 03:39:00.586 [TX] - at at%nwoper="TRUPHONE"<CR><LF>

1/28/2022 03:39:00.589 [RX] - <CR><LF>

  ATParser:*** SEND (size=21) ***<LF><CR>

at%nwoper="TRUPHONE"<CR><LF><CR>

  <CR><LF><LF><CR>

  OK<CR><LF><LF><CR>

I tested in my house, rssi 99, is it good or bad?

-Sig quality rssi : 99<LF><CR>

 -Sig quality ber : 99<LF><CR>

0693W00000JNbziQAD.pngPlease help? I guest many people face this problem as well.

Anyone has AT command to share? Or any guide line document for setting APN?

Best regards,

Virut Apiwattanasorn

Aeh1
Associate II

I read in forum and send at at%getacfg=radiom.config.preferred_rat_listI

It return none,

1/28/2022 03:50:47.793 [TX] - at at%getacfg=radiom.config.preferred_rat_list<CR><LF>

1/28/2022 03:50:47.798 [RX] - <CR><LF>

  ATParser:*** SEND (size=44) ***<LF><CR>

at%getacfg=radiom.config.preferred_rat_list<CR><LF><CR>

  <CR><LF><LF><CR>

  none<CR><LF><LF><CR>

  OK<CR><LF><LF><CR>

so I changed to NBIOT

1/28/2022 03:50:54.074 [TX] - at at%setacfg=radiom.config.preferred_rat_list,"NBIOT"<CR><LF>

1/28/2022 03:50:54.080 [RX] - <CR><LF>

  ATParser:*** SEND (size=52) ***<LF><CR>

at%setacfg=radiom.config.preferred_rat_list,"NBIOT"<CR><LF><CR>

  <CR><LF><LF><CR>

  OK<CR><LF><LF><CR>

Now CEER? return

EMM","ATTACH","REJECT",#14,EPS_SERVICES_NOT_ALLOWED_IN_THIS_PLMN<CR><LF>

ATCModem:NetworkState (CS) = REGISTRATION_DENIED<LF><CR>

  <CR><LF><LF><CR>

  OK<CR><LF><LF><CR>

  ATParser:*** SEND (size=9) ***<LF><CR>

AT%CEER?<CR><LF><CR>

  <CR><LF><LF><CR>

  %CEER: 1,"NAS-EMM","ATTACH","REJECT",#14,EPS_SERVICES_NOT_ALLOWED_IN_THIS_PLMN<CR><LF><LF><CR>

  <CR><LF><LF><CR>

  OK<CR><LF><LF><CR>

so I changed to CatM

1/28/2022 04:15:14.670 [TX] - at at%setacfg=radiom.config.preferred_rat_list,"CatM"<CR><LF>

1/28/2022 04:15:14.676 [RX] - <CR><LF>

  ATParser:*** SEND (size=51) ***<LF><CR>

at%setacfg=radiom.config.preferred_rat_list,"CatM"<CR><LF><CR>

  <CR><LF><LF><CR>

  OK<CR><LF><LF><CR>

Now CEER? return

EMM","ATTACH","REJECT",#14,EPS_SERVICES_NOT_ALLOWED_IN_THIS_PLMN<CR><LF>

ATCModem:NetworkState (CS) = REGISTRATION_DENIED<LF><CR>

  <CR><LF><LF><CR>

  OK<CR><LF><LF><CR>

  ATParser:*** SEND (size=9) ***<LF><CR>

AT%CEER?<CR><LF><CR>

  <CR><LF><LF><CR>

  %CEER: 1,"NAS-EMM","ATTACH","REJECT",#14,EPS_SERVICES_NOT_ALLOWED_IN_THIS_PLMN<CR><LF><LF><CR>

  <CR><LF><LF><CR>

  OK<CR><LF><LF><CR>

  ATParser:*** SEND (size=9) ***<LF><CR>

So is it work in Thailand?

I need to test with external plastic sim from Thai operator, do you have step by step setting guide?

It's not ok for this difficulty and unclear documents.

I almost give up and change solution to MCU + Simcom or Quectel modems that I can control every step.

Best Regards,

Please help.

I will use your module in electronic water meter in Thailand and Vietnam markets.

Aeh1
Associate II

I manage to use TRUE( Local ISP operator in Thailand) NB-IOT sim card successfully but only for NB-IOT not LTE-M1

By setting

at at%nwoper="DEFAULT"

at at%setacfg=radiom.config.preferred_rat_list,"NBIOT"

Default firmware "none" and "CatM" don't work. (REGISTRATION_DENIED)

Is it should be "CATM" or "CatM"?, very frustrate without AT command document

However, no luck on Truphone both CatM and NBIOT

After long waiting period always return

AT%CEER?<CR><LF><CR>

  <CR><LF><LF><CR>

  %CEER: 1,"NAS-EMM","ATTACH","REJECT",#15,NO_SUITABLE_CELLS_IN_TRACKING_AREA<CR><LF><LF><CR>

  <CR><LF><LF><CR>

  OK<CR><LF><LF><CR>

I guess my location not coverage by Truphone, even Thailand is in their Country list.

FYI

Best Regards,

Virut

HDaji.1
Senior

About a few weeks ago, I managed to make my board to use eSIM by truphone to connect to Internet.

Today suddenly it stopped working after I flashed the original binary code (l462_t1se_socket_v520.bin in STM32CubeExpansion_CELLULAR_V5.2.0\Projects\B_L462E\Demonstrations\Cellular\Binaries) into it.

It always says "SIM not inserted", even I select slot 0. I tried slot 1 as well, same result.

It's really strange and annoying. I attached the print-2-screen log for your info.

Can anyone give some comments?

S.RA
ST Employee

Dear HDaji.1

It is indeed strange since the eSIM is always present. The X-CUBE-CELLULAR firmware does not change perfom any control to the eSIM. Please, can you try to use the X-CUBE-CELLULAR 700 to get more information about the SIM selection configuration.

Solofo

Hi Solofo,

Can you be more specific on what I need to do?

There are many pieces of info sheets and how-to documents about this board, um2567, 2426, 2743, etc. I just cannot find anything related to trouble-shooting eSIM.

If SIM card is not found, it's not helpful to use AT command to retrieve SIM info, is it?

BTW, I think I have changed (messed up) content of EEPROM. Is it the cause? I guess not.

HDaji.1
Senior

Dear Solofo,

Can you be more specific on what I need to do?

I cannot find anything in those documents (um2426, 2567, 2743, etc) that is related to eSIM card trouble-shooting? FYI, I have activated it on Truphone.com and used it for a few weeks.

BTW, I think I have changed (messed up) the content of EEPROM when I tried the board. Is it the cause?

RRobl.1
Associate II

I am in the USA in the state of Wisconsin experiencing the same issues. I just purchased the B-L462E-CELL1 board two weeks ago and TRUPHONE has been very little help. I get an average of a new question from them every 2-3 days. Has anyone compiled a list of the steps to solve the REGISTRATION DENIED problem?