FX30S no connection to LTE with the french provider SFR

IoT Gateways FX30
1

Hi all,

Are there some French people around? I wonder if anybody have tried to use an SFR SIM card with the FX30. The APN is “websfr” : +CGDCONT=1,“IP”,“websfr”, … I can only connect to the GSM network. It is impossible to get a connection to LTE. I tried the SIM card on my smartphone an it worked with 4G. I also tried the FX30 with other SIM card from the provider ORANGE and it connected to the LTE network without problem. Therefore, there is some kind of incompatibility with SFR and the FX30. Anyone has experiment the same issue? Of course, because of my company policy, I can not change for an other provider that easily.

Thanks a lot.

2

Hi @Romain.B,
When you insert your activated SIM Card, in most cases your mobile device will automatically update with the required settings. However, you need to do this manually on FX30s. I wonder that is “websfr” APN used for LTE?
Can you verify the APN is displayed on your smartphone is the same on the module? If no, please change APN on FX30S then try again. If same, please try
AT!ENTERCND=“A710”
ATI3
ATI8
AT!GSTATUS?
AT+CGDCONT?
AT+CGACT?
AT+CGPADDR
AT+COPS=3,2
AT+COPS?
AT+KSRAT?
AT!SELCIOT?
AT!BAND?
AT*PSRDBS?
AT+CEREG?
Thanks

3

Thanks a lot for the reply.

Yes, the apn for my smartphone is the same :“websfr”. I tried others and it didn’t work, therefore “websfr” seems to be be the good one.

Here is for the at command :

AT!ENTERCND=“A710”

OK
ATI3
±----------------------------+
Manufacturer: Sierra Wireless, Incorporated | |
Model: FX30(WP7702) | Cannot open /dev/ttyUSB2! |
Revision: SWI9X06Y_02.22.12.00 eaf79c jenkins 2019/04/24 18:48:27 | |
IMEI: 354723090116970 ±----------------------------+
IMEI SV: 3
FSN: VU847300351010
+GCAP: +CGSM,+DS

OK
ATI8

Legato Ver: 18.09.4.c964f253_3ba44b6732e03bacfafb714c4463754d
Yocto Ver: SWI9X06Y_02.22.04.00 2020-06-18_02:43:58
OS Ver: Linux version 3.18.44 (jenkins@CAKEL-EV-ALBLD2) (gcc version 6.2.0 (GCC) ) #2 PREEMPT Thu Jun 18 02:45:08 UTC 2020
LK Ver: 1.3.0_da731a7332
RootFS Ver: SWI9X06Y_02.22.04.00 2020-06-18_02:43:58
UserFS Ver: unknown
MCU Ver: 002.011

OK
AT!GSTATUS?
!GSTATUS:
Current Time: 387 Temperature: 22
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 1 Mode: ONLINE
System mode: GSM PS state: Attached
IMS reg state: UNKNOWN IMS mode: Not Support
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
GSM band: GSM900
GSM channel: 83
GMM (PS) state:REGISTERED NORMAL SERVICE
MM (CS) state: IDLE NORMAL SERVICE

Serving cell: 83 (GSM900 )
RX level (dBm):-71.5625 LAC: C31F (49951)
GPRS state: GPRS STANDBY Cell ID: 0000BDA9 (48553)

OK
AT+CGDCONT?
+CGDCONT: 1,“IP”,“websfr”,“0.0.0.0”,0,0,0,0

OK
AT+CGACT?
+CGACT: 1,0

OK
AT+CGPADDR
+CGPADDR: 1,0.0.0.0

OK
AT+COPS?
+COPS: 0,0,“F SFR”,3

OK
AT+KSRAT?
+KSRAT: 9

OK
AT!SELCIOT?
Current Operating Mode: 0x2

Supported Operating Modes:
LTE WB: 0x01
LTE M1: 0x02
LTE NB1: 0x04

OK
AT!BAND?
Index, Name
00, All bands

OK
AT*PSRDBS?
*PSRDBS: 22119907721243

OK
AT+CEREG?
+CEREG: 2,4

OK

Thanks.

4

@Romain.B

So this is an FX30 LPWA which means it can do M1, NB1 and 2G, it cannot do standard LTE. If you want to use M1 or NB1 (assuming you have coverage) you will typically need to get a special SIM card from the given operator, a commercial SIM card, as a rule, will not work.

First step though is to see if you are able to see anything other than a 2G network with the at+cops=? command (which will take a while to complete).

Regards

Matt

5

Thanks for the comment Matt.

Which info tells you that I can not do LTE with the modem? As I wrote in my first post, I tried the FX30S with a SIM card from an other french provider and it worked for LTE. My only action was to change the apn name and to set AT!SELRAT=06.

Thx.

6

@Romain.B

So the core module inside the unit is a WP7702 as can be seen from the commands you sent.
Model: FX30(WP7702)

This is an LPWA/2G module. There are a few different variants of the FX30S, the original being 2G/3G, this one LPWA and 2G and another which is cat 1 LTE (and 2G/3G). The variants are described in the user guide.
https://source.sierrawireless.com/resources/airlink/hardware_reference_docs/airlink_fx30s_hw_user_guide/

In theory the unit could roam directly onto M1 but typically you do need a SIM with specific rights and there will be a specific APN. Your phone and SIM obviously uses commercial LTE cat 1 +.

Regards

7

Hi,

Actually, the version that I have is the FX30S LTE-M. This is the version for Europe. If I can not connect with SFR, it is probably because it doesn’t work with LTE-M.

Thanks.