Hello, I added a Sierra EM7455 card to my thinkpad x270, but since reinstalling Windows the card shows me disconnected, however it recognizes the network operator. Before doing the reinstalling everything worked fine. The drivers are up to date via the Lenovo website. Do you have an idea of th…

how is the response of the following? ATI3 AT!ENTERCND=“A710” AT!IMPREF? AT!GSTATUS? AT+CFUN? AT+CPIN? AT!uims? AT!USBCOMP?

[image] jyijyi: how is the response of the following? Where to find the answer? Sorry I’m not an expert in command lines.

do you have modem port in device manager? If yes, you can use tera term to open the port and type AT commands

I have a wifi card, ethernet card and the EM7455 card. On the other hand, no RJ45 cable, I only work via wifi or with the EM7455.

do you have modem port in device manager? you can see this link where the user reinstall the driver with configuration.ini to enumerate the modem port: [image] USSD Software for Windows 10 MC/EM Series Done [image]

Here is the list of components. [liste carte reseau]

Here is the result of what you asked me ATI3 Manufacturer: Sierra Wireless, Incorporated Model: EM7455 Revision: SWI9X30C_02.33.03.00 r8209 CARMD-EV-FRMWR2 2019/08/28 20:59:30 MEID: 01458300078882 IMEI: 014583000788827 IMEI SV: 20 FSN: LF821479220310 +GCAP: +CGSM,+DS,+ES OK AT!ENTERCND=“A…

i can see the module is registered on 3G.

Yes there is a sim card in it, the provider is detected but I don’t have internet

EM7455 disconnected, no network connection

IoT Modules

jyijyi January 29, 2024, 11:43am 8

there is no modem port.

you can see this link where the user reinstall the USB driver with configuration.ini (setting USBCOMP=8) to enumerate the modem port:

Topic		Replies	Views
EM7455 connection halts IoT Modules	3	756	April 23, 2023
COM Port for AT test commands at EM7455, Windows 10 MC/EM Series	7	8258	February 8, 2026
Is there anyway to rescure a bricked EM7455? MC/EM Series fw-upgrade	5	1607	March 6, 2023
EM7455 showing No Service and Verizon (Forbidden) IoT Modules	20	4693	April 15, 2024
Not getting port(USB) for EM7455 modem MC/EM Series	9	188	November 30, 2024

EM7455 disconnected, no network connection

Related topics