EM7455 showing No Service and Verizon (Forbidden)

I am trying to connect my PC to the internet using a SIM from Verizon.
For some reason I am getting No Service despite having a Verizon phone that does get service. I’ve attached and reattached antennas and tried installing the drivers.
The network shows Forbidden in Windows settings

Hi andrew5 ,

Welcome you to our community.
What is the output of the following commands?
ATI3
AT!ENTERCND=“A710”
AT!IMPREF?
AT!IMAGE?
AT!GSTATUS?
AT+CGDCONT?
AT!BAND?
AT+CPIN?
AT+CCID?
AT+CIMI
AT!UIMS?
AT+CFUN?
AT!PCINFO?
AT!USBCOMP?
AT+COPS=?

Thanks Donald for the reply. I am new to this… How would I input these AT commands in Windows? I have my card connected via a usb adapter

Hi andrew5,

Firstly, you need to install the driver windows for EM7455
Windows Drivers for EM/MC Series Modules (Build 5087)

Then you can use Sierra Wireless Snapdragon™ X7 LTE-A WWAN Modem port to input AT command.
I have attached the screenshot below for your reference.

image

1 Like

Thank you for the screenshot. Unfortunately I do not have a modem section, only network devices and I dont see a port specified. Any ideas?

Hi Donald,
I am now trying with a Sierra Wireless Airprime EM7565 and my computer is now recognizing the unit as a modem.

Now the issue is that I cant turn on Cellular on Windows for some reason.

Here are the responses to the commands you sent.
ATI3

Manufacturer: Sierra Wireless, Incorporated
Model: EM7565
Revision: SWI9X50C_01.08.04.00 dbb5d0 jenkins 2018/08/21 21:40:11
IMEI: 353533102646406
IMEI SV: 8
FSN: UF145702280110
+GCAP: +CGSM

AT!ENTERCND=“A710”

ERROR
Command error…

AT!IMPREF?

!IMPREF:
preferred fw version: 01.08.04.00
preferred carrier name: GENERIC
preferred config name: GENERIC_002.011_002
current fw version: 01.08.04.00
current carrier name: GENERIC
current config name: GENERIC_002.011_002

AT!IMPREF?

!IMPREF:
preferred fw version: 01.08.04.00
preferred carrier name: GENERIC
preferred config name: GENERIC_002.011_002
current fw version: 01.08.04.00
current carrier name: GENERIC
current config name: GENERIC_002.011_002

OK
AT!IMAGE?

TYPE SLOT STATUS LRU FAILURES UNIQUE_ID BUILD_ID
FW 1 GOOD 2 0 0 ?? 01.08.04.00?
FW 2 GOOD 1 0 0 ?? 01.07.02.00?
FW 3 GOOD 1 0 0 ?? 01.09.04.00?
FW 4 EMPTY 0 0 0
Max FW images: 4
Active FW image is at slot 1

TYPE SLOT STATUS LRU FAILURES UNIQUE_ID BUILD_ID
PRI FF GOOD 0 0 0 002.008_012 01.07.02.00_ATT
PRI FF GOOD 0 0 0 002.015_002 01.09.04.00_DOCOMO
PRI FF GOOD 0 0 0 002.011_002 01.08.04.00_GENERIC
PRI FF GOOD 0 0 0 002.001_002 01.08.04.00_SIERRA
PRI FF GOOD 0 0 0 002.017_002 01.09.04.00_SOFTBANK
PRI FF GOOD 0 0 0 000.001_003 01.08.04.00_SPRINT
PRI FF GOOD 0 0 0 001.000_002 01.07.02.00_TELUS
PRI FF GOOD 0 0 0 002.015_006 01.08.04.00_VERIZON
Max PRI images: 50

AT!GSTATUS?

!GSTATUS:
Current Time: 445 Temperature: 30
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Attached
LTE band: B2 LTE bw: 10 MHz
LTE Rx chan: 1000 LTE Tx chan: 19000
LTE SSC1 state:NOT ASSIGNED
LTE SSC2 state:NOT ASSIGNED
LTE SSC3 state:NOT ASSIGNED
LTE SSC4 state:NOT ASSIGNED
EMM state: Registered Normal Service
RRC state: RRC Idle
IMS reg state: No Srv

PCC RxM RSSI: -69 PCC RxM RSRP: -100
PCC RxD RSSI: -71 PCC RxD RSRP: -103
Tx Power: – TAC: 2b09 (11017)
RSRQ (dB): -14.1 Cell ID: 053d7818 (87914520)
SINR (dB): 2.2

AT+CGDCONT?

+CGDCONT: 1,“IPV4V6”,"",“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 2,“IPV4V6”,“vzwadmin”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0

OK
Following connection profiles are available,

CID-> 1
PDP Type->IPV4V6
APN->
PDP Address->0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0
Data Compression->0
Header Compression->0

CID-> 2
PDP Type->IPV4V6
APN->vzwadmin
PDP Address->0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0
Data Compression->0
Header Compression->0

AT!BAND?

Index, Name
00, All bands

OK
Current Band Index is 00
Current Band Selection is All bands

AT+CPIN?

+CPIN: READY

OK
SIM is ready

AT+CCID?

+CCID: 89148000007627424316

OK
ICCID of the SIM is +CCID: 89148000007627424316

AT+CIMI

311480733130812

OK
Phone Number : 311480733130812

AT!UIMS?

!UIMS: 0

AT+CFUN?

+CFUN: 1

OK
Device has Full functionality.

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, RFCAL:0
LPM persistence - None

AT!USBCOMP?

ERROR
Command error…

+COPS: (2,"Verizon ","Verizon ",“311480”,7),(1,“Extended”,“Extended”,“310410”,2),(1,“Roam”,“Roam”,“310260”,2),(1,“313 100”,“313 100”,“313100”,7),(1,“Roam”,“Roam”,“310260”,7),(1,“311 490”,“311 490”,“311490”,7),(1,“Extended”,“Extended”,“310410”,7),(1,“Sprint”,“Sprint”,“310120”,7),(1,“312 530”,“312 530”,“312530”,7),(1,“311 882”,“311 882”,“311882”,7),(0,1,2,3,4),(0,1,2)

OK
Device is currently on "Verizon " network.

Hi andrew5 ,

From your log file, the module can register the network successfully.
Please share the output of following commands:
Pease try manually entering AT!ENTERCND="A710", do not copy and paste the command, it may have error “”

AT!ENTERCND="A710"
AT!USBCOMP?

Hi Donald -
For AT!ENTERCND=“A710”
I get “Password protected commands are unlocked”

For AT!USBCOMP?
I get
AT!USBCOMP?
Config Index: 1
Config Type: 3 (Generic)
Interface bitmask:0000010D (diag,nmea,modem,mnet0)

Also weirdly now I can’t see any network and the network is called “Cellular 18” and is Turned Off in Windows Settings now

Hi Donald,

More updates. I tried the EM 7455 with a T-mobile SIM just now and it worked fine right away.
However it is still not working with the Verizon SIM. I get No Service no matter what I try. Is it possible this device is locked? It seems like it should support Verizon, correct?

Thank you so much for your assistance with this. I very much appreciate it!


Hi Donald-
Any ideas on this? I still cannot get Verizon SIMs to work on this module.
I tried 2 different Verizon SIMs on the EM7565 and EM 7455 and neither works with Verizon, even though both cards should support Verizon.

I will need to find a card that supports Verizon, AT&T, and T-mobile before I can order several hundred of these for my company. Thanks!

Hi andrew5 ,

Please try installing firmware Verizon into the module.

Hi Donald,

Are there steps to install the Verizon firmware on this card?

Ive now tested these cards with a Quectel module and T-mobile and Verizon 5G both worked.

Thanks for your help with this!

More specifically, is there a way to update or reset the firmware so that AT&T (FirstNet), NTT Docomo, T-Mobile, and Verizon cards will all work? Thank you

Hi andrew5,

You can download and install the firmware Verizon EM7455, EM7565 here
AirPrime EM/MC74xx Approved FW Packages
EM75xx Approved FW Packages

@andrew5

Surprised that the Quectel worked out of the box on Verizon if ours did , it should be treated the same as the EM7565. Basically Verizon do a lot of linking of unit IMEI’s to application certifications i.e. if your application is not certified to work on their network then it will not allow you to attach, its nothing to do with the unit its to do with authentication on the network (even if you are using an approved Verizon firmware package). Your handset works because it see’s the IMEI of the handset which is approved.

TMO and AT&T are far less strict about this sort of thing.

Regards

Matt

Thanks Donald! Is there also firmware for the EM9191? I have been trying to get that one to work and also have not had luck.

Will one of these firmware packages allow the card to support all carriers? (Like an unlocked mode?) We would like our customers to BYO SIM card. Thank you!

Hi andrew5,

You can download the firmware EM9191 here
EM9190/EM9191/EM7690 Approved FW Packages
You can use firmware Generic to support all carriers.

Thanks Donald! I will try this out. Do you have step by step instructions somewhere on installing the firmware? I have not installed firmware before. Thank you!

Hi Donald,

I tried installing the Generic firmware but I keep getting an installation failed error

Here are the steps I followed

  1. Downloaded and installed the latest EM 9191 driver (SDX55 file)
  2. Downloaded the FDT tool
  3. Dropped the FDT.exe tool into the same folder as the Generic Firmware
  4. CD’d into the Generic firmware directory
  5. Ran the command fdt2.exe -f a.cwe
  6. Received a note that the program is waiting for the appropriate connection
  7. Connected USB module with Airprime EM9191
  8. Got the message that firmware installation failed.

I tried both methods of connecting the module after Step 6, and having the module connected the entire time and both failed. Am I doing something wrong? Please let me know, thanks!