Dell EM7455 no service - Orange Romania

IoT Modules MC/EM Series
1

Hi, I have a Dell 7480 (with windows 10) which come with EM7455 installed. I’m using an Orange Prepaid SIM Card.
In my connectivity menu I can see the Profile Orange but without service. I’ve tried to upgrade the firmware from here https://source.sierrawireless.com/resources/airprime/minicard/74xx/airprime-em_mc74xx-approved-fw-packages/#sthash.H1Aibj07.KkeCzNwI.dpbs using a generic one because there is no Orange and the KIT from Dell.

I saw something strange, Even I have only Orange, when I execute netsh mbn sh vis int=* , I see a Digi Mobil (226 05) network (another Romanian operator) as being permitted and the Telekom Mobile (22606) as being Forbidden. But there is no Orange (226 10) :blush:
Please help!

Visible providers list for interface Cellular 12:

Provider # 1
  Name           : 226 06
  Id             : 22606
  state          : Forbidden, Visible, Registered
  data class     : UMTS, HSDPA, HSUPA, LTE
  cellular class : GSM
  rssi           : 99
  error rate     : 99

Provider # 2
  Name           : RO Digi.Mobil
  Id             : 22605
  state          : Visible
  data class     : UMTS, HSDPA, HSUPA, LTE
  cellular class : GSM
  rssi           : 99
  error rate     : 99




There is 1 interface on the system:

    Name                   : Cellular 12
    Description            : Generic Mobile Broadband Adapter #12
    GUID                   : {6EE7DE1E-BBFD-4993-8F27-A5BC3FD4F66A}
    Physical Address       : 80:81:9a:54:47:59
    Additional PDP Context : No (Physical interface)
    Parent Interface Guid  : No parent
    State                  : Not connected
    Device type            : This is a remote device
    Cellular class         : GSM
    Device Id              : 354479087080410
    Manufacturer           : Sierra Wireless, Incorporated
    Model                  : DW5811e SnapdragonT X7 LTE
    Firmware Version       : SWI9X30C_02.28.00.00
    Provider Name          :
    Roaming                : Not roaming
    Signal                 : 0%
    RSSI / RSCP            : 0 (-113 dBm)

PS C:\Windows\system32> netsh mbn sh read int=*

Ready information for interface Cellular 12:
-------------------------------------
    State            : Ready to power up and register
    Emergency mode   : Off
    Subscriber Id    : 226103016990307
    SIM ICC Id       : 8940101909044354057
    Number of telephone numbers  : 0

PS C:\Windows\system32> netsh mbn sh rad int=*

Radio state information for interface Cellular 12:
-------------------------------------
    Hardware radio state      : On
    Software radio state      : On

PS C:\Windows\system32> netsh mbn sh cap int=*

Device capability information for interface Cellular 12:
-------------------------------------------------------
    Device type                  : This is a remote device
    Cellular class               : GSM
    Voice class                  : No voice
    Sim class                    : SIM is removable
    Data class                   : UMTS, HSDPA, HSUPA, LTE
    GSM band class               : Unknown
    SMS capability               : PDU receive, PDU send
    Control capability           : Manual network selection is allowed
                                   USSD support available
    Device Id                    : 354479087080410
    Manufacturer                 : Sierra Wireless, Incorporated
    Model                        : DW5811e SnapdragonT X7 LTE
    Firmware Information         : SWI9X30C_02.28.00.00
    Maximum activation contexts  : 8

PS C:\Windows\system32> netsh mbn sh vis int=*
Scanning for available networks. Device can take few minutes to complete this operation

Visible providers list for interface Cellular 12:
-----------------------------------------------
    Provider # 1
      Name           : 226 06
      Id             : 22606
      state          : Forbidden, Visible, Registered
      data class     : UMTS, HSDPA, HSUPA, LTE
      cellular class : GSM
      rssi           : 99
      error rate     : 99

    Provider # 2
      Name           : RO Digi.Mobil
      Id             : 22605
      state          : Visible
      data class     : UMTS, HSDPA, HSUPA, LTE
      cellular class : GSM
      rssi           : 99
      error rate     : 99
2

Hi cristian,

Could you please provide some information about your module and SIM card using below commands?

AT!ENTERCND=“A710”
AT+CPIN?
AT!BAND=?
AT!BAND?
AT!GSTATUS?
AT+COPS?
AT+COPS=?
AT!IMPREF?
AT!CUSTOM?
AT!PCINFO?
AT!GETBAND?

3

Hi, can you please help me and tell me how? :slight_smile:
I saw taht the AT commands are sent through the putty terminal. In Device manager i can find the device as having the COM7 port but using the putty connection it can’t connect to it.

4

The funny thing is that I’ve bought a Digi Mobil SIM card (22605) and it works perfectly. So the problem now is that the modem is locked only to be used with few (and poor) operators.

5

I am happy to hear it is working now.

6

Hi, I have similar problem, seing two operators but not Telenor. We have tried the SIM in a phone and it seems to work fine.

Attached are replies from netch command

image
image982×512 80.5 KB

AT commands christian requested:

at!entercnd=“A710”
OK
at+cpin?
+CPIN: READY

OK
at!band?
Index, Name, GW Band Mask L Band Mask TDS Band M ask
00, All bands, 0002000007C00000 00000100330818DF 0000000000 000000

OK
at!gstatus?
!GSTATUS:
Current Time: 42518 Temperature: 38
Reset Counter: 1 Mode: ONLINE
System mode: WCDMA PS state: Not attached
WCDMA band: WCDMA 1900
WCDMA channel: 637
GMM (PS) state:DEREGISTERED LIMITED SERVICE
MM (CS) state: IDLE LIMITED SERVICE

WCDMA L1 state:L1M_PCH_BPLMN LAC: 10D1 (4305)
RRC state: DISCONNECTED Cell ID: 012C3E90 (19676816)
RxM RSSI C0: -98 RxD RSSI C0: —
RxM RSSI C1: — RxD RSSI C1: —

OK
at+cops?
+COPS: 0

OK
at+cops=?
+cops: (3,“N NetCom”,“NetCom”,“24202”,2),(3,“N NetCom”,“NetCom”,“24202”,7),(0,1,2,3,4),(0,1,2)

OK
at!impref?
!IMPREF:
preferred fw version: 02.24.05.06
preferred carrier name: GENERIC
preferred config name: GENERIC_002.026_000
current fw version: 02.24.05.06
current carrier name: GENERIC
current config name: GENERIC_002.026_000

OK
at!custom?
!CUSTOM:
GPSENABLE 0x01
GPSLPM 0x01
IPV6ENABLE 0x01
UIM2ENABLE 0x01
SIMLPM 0x01
USBSERIALENABLE 0x01
SINGLEAPNSWITCH 0x01

OK
at!pcinfo?
State: Online
LPM voters - Temp:0, Volt:0, User:0, W_DISABLE:0, IMSWITCH:0, BIOS:0, LWM2M:0, OMADM:0, FOTA:0
LPM persistence - None

OK
at!getband?
!GETBAND: No Service

OK

7

Just a follow up to clearout any misunderstanding. This is NOT a Dell computer but similar behavior running on a mITX-CFL-S motherboard from Kontron, the EM7455 supplied by Kontron as well.