B-L462E-CELL1 not connecting to TruPhone

Clark Sann · ‎2021-04-19

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?

Clark Sann · ‎2021-04-29

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 · ‎2021-06-21

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>

%NWOPER: "TRUPHONE"<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>

ATParser: Big frame (display deactivated)

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 · ‎2022-01-27

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>

%CEER: 1<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>

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>

Please 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 · ‎2022-01-27

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>

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>

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>

OK<CR><LF><LF><CR>

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

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

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

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>

OK<CR><LF><LF><CR>

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

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

%CEER: 1,"NAS-EMM","ATTACH","REJECT",#14,EPS_SERVICES_NOT_ALLOWED_IN_THIS_PLMN<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 · ‎2022-01-27

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>

%CEER: 1,"NAS-EMM","ATTACH","REJECT",#15,NO_SUITABLE_CELLS_IN_TRACKING_AREA<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 · ‎2022-06-03

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 · ‎2022-06-03

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

HDaji.1 · ‎2022-06-03

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 · ‎2022-06-03

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 · ‎2023-02-16

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?