Connect Network with FX30

Hello,

For an IOT project, i’am trying to configure an FX30 modem to reach the Network using a SIM card from “Transatel” operator (HNI number: 208 22).

By placing a fresh SIM card in the FX30, it is correctly detected by the “cm sim info” and “cm sim status” commands (no PIN required).

I configured the APN with AT+CGDCONT but the FX30 never reach the network, the “PS STATE” of “AT!GSTATUS?” command stay “Not Attached”.

If I put the SIM card in my Smartphone, there is no problem, my Smartphone reach the 4G network.

After that, if I put back the SIM card in the FX30, it’s now working without entered any AT command, the LED switch from RED to ORANGE and the “PS STATE” is now “Attached”.

The problem is reproducible, every new SIM card can’t be used in the FX30 before being placed at least one time in a Smartphone.

I guess the Smartphone configured something in the SIM Card but what ?

Any idea of some AT Command that I should entered for enabling automatic attachement to the Transatel network ?

Did you confirgure correctly the Apn for the 1st time usage?

For the first usage, after configured the root password, I configured the SIM Card :

cm sim mode MANUAL
cm sim select EXTERNAL_SLOT_1

Then checked the SIM Card :

cm sim
SIM card is inserted and unlocked (LE_SIM_READY).

cm sim info
Type:                          EXTERNAL_SLOT_1
ICCID:                         8988247000014553367
Home Network Operator:         Transatel
EID:
IMSI:                          901370001455336

After that, i configured the APN :

AT+CGDCONT=1,“IP”,“mobiledata”

And then checked it :

AT+CGDCONT?
+CGDCONT: 1,"IP","mobiledata","0.0.0.0",0,0,0,0

But the modem did not attached to the Network.

Here is some diag if required :

root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~# cm sim
SIM card is inserted and unlocked (LE_SIM_READY).

root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~# cm sim info
Type:                          EXTERNAL_SLOT_1
ICCID:                         8988247000014553367
Home Network Operator:         Transatel
EID:
IMSI:                          901370001455336
Phone Number:
root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~# cm info
Device:                        FX30(WP7702)
IMEI:                          354723091120583
IMEISV:                        8
FSN:                           AT342525081510
Firmware Version:              SWI9X06Y_02.36.08.09 c094f4 jenkins 2022/06/24 03:14:28
Bootloader Version:            SWI9X06Y_02.36.08.09 c094f4 jenkins 2022/06/24 03:14:28
MCU Version:                   002.015
PRI Part Number (PN):          9910239
PRI Revision:                  001.002
Carrier PRI Name:              GENERIC
Carrier PRI Revision:          001.079_000
SKU:                           1104770
Last Reset Cause:              Power Down
Resets Count:                  Expected: 19     Unexpected: 0
root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~# cm data
Index:                         1
APN:                           mobiledata
PDP Type:                      IPV4
Connected:                     no
root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~# cm radio
Power:                         ON
Current Network Operator:
Current RAT:                   Module not registered on network, RAT not available
Status:                        Not registered but currently searching for a new operator (LE_MRC_REG_SEARCHING)
Signal:                        No signal strength (0)
PS:                            Packet Switched Not registered (LE_MRC_REG_NONE)

root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~#
root@fx30:~# microcom -E /dev/ttyAT
AATTEE00
OK
ATI
Manufacturer: Sierra Wireless, Incorporated
Model: FX30(WP7702)
Revision: SWI9X06Y_02.36.08.09 c094f4 jenkins 2022/06/24 03:14:28
IMEI: 354723091120583
IMEI SV:  8
FSN: AT342525081510
+GCAP: +CGSM

OK
AT+CPIN?
+CPIN: READY

OK
AT+CREG?
+CREG: 0,2

OK
AT+CGREG?
+CGREG: 0,4

OK
AT+COPS?
+COPS: 0

OK
AT+CGACT?
+CGACT: 1,0

OK
AT!GSTATUS?
!GSTATUS:
Current Time:  307              Temperature: 29
Modem Mitigate Level: 0         ModemProc Mitigate Level: 0
Reset Counter: 1                Mode:        ONLINE
System mode:   LTE              PS state:    Not attached
IMS reg state: UNKNOWN          IMS mode:    Not Support
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
LTE band:      No band          LTE bw:      Unknown
LTE Rx chan:   1                LTE Tx chan:  ---
LTE CA state:  ACTIVE                   LTE Scell band:No band
LTE Scell bw:Unknown            LTE Scell chan:       0
EMM state:     Deregistered     Attach Needed
RRC state:     RRC Idle

PCC RxM RSSI:  0                RSRP (dBm):  0
PCC RxD RSSI:  0                RSRP (dBm):  0
SCC RxM RSSI:  0                RSRP (dBm):  0
SCC RxD RSSI:  0                RSRP (dBm):  0
Tx Power:      --               TAC:         0000 (0)
RSRQ (dB):     0                Cell ID:     00000000 (0)
SINR (dB):     0

OK
AT+CGDCONT?
+CGDCONT: 1,"IP","mobiledata","0.0.0.0",0,0,0,0

OK

Is your sim card for nbiot or cat-m network?
I don’t understand why a smartphone can use nbiot or cat-m sim card ..

Is your smartphone registering gsm network?

The SIM card comes from Transatel, a World Wide operator providing standard connectivity (2G, 3G, 4G, 5G) and LTE-M.

In France where I performs the tests, Transatel has the ability to use the following networks :

  • Orange : 2G, 3G, 4G, 5G, LTE-M
  • SFR : 2G, 3G, 4G, 5G
  • Free Mobile : 3G, 4G, 5G
  • Bouygues Telecom : 2G, 3G, 4G, 5G

My Smartphone is not compatible with LTE-M, I can see the 4G icone when the SIM card is inserted.

After putting back the SIM card in the FX30, it seems to be using LTE-M, the “AT!GSTATUS?” returns “System mode: LTE — PS state: Attached”.

i think you need to contact network operator to see whether the first time registration needs to be LTE instead of CAT-M

You might also do a test like this:

  1. set your phone to be GSM only
  2. insert the new SIM
  3. see if it can register network
  4. now take another new sim
  5. set the FX30 to be GSM only mode in AT!SELRAT
  6. insert the second new SIM
  7. see if it can register network

I no longer have an unactivated SIM for the moment and will perform this test for the next production batch in few days or weeks.

While waiting for this, I will also contact the Transatel support and ask them for details about LTE registration.

Before temporarily close this topic, i may have some additionnal questions : I noticed that Transatel is not available in the FX30 operators list given by “AT+COPN”, could this be related to our problem?

for the 2nd time successful registering network, does the operator name appear in the FX30 +COPN list?

For the second times, the AT+COPS? commands returns me “+COPS: 0,0,“Transatel”,7” while it returned “+COPS: 0” on the first time.

On all tests (first and second times), Transatal does not appears in the “AT+COPN?” list, even if this networks seems to be used by +COPS return.

Then probably +copn is not related

Btw, if gsm mode can help to activate your sim card, you might need to set the same for your fx30