Wireless Joint

Hello, i have big problem (becouse my english is not well, maybe i not understand something), sorry for polish language in screenshoot in attachment.

I have EM7455 in my lenovo x260, and in device manager show me numbers but no COM3, if i try find my EM7455 in terminal it show error in russian language (i dont understand it).

Can u help me with aggregation band ? i want use only LTE 1800/2100

Sorry for the spelling mistakes, my english is really not good ;/

Have you downloaded the and installed the Sierra Wireless Software drivers for windows.

That allows the PC to communicate with the modem and COM ports.

Yes "skylight" work great 3g/lte and gps

The problem is that allowing Skylight and/or Windows to control the modem, can place the modem in an undesirable composition. We have seen this on numerous occasions.

I would first uninstall Skylight, and all the Sierra Wireless software and components, and reboot the PC.

With the SIM Card removed, I would reinstall the Sierra Wireless software drivers for Windows and then see if the Huawei terminal will then see the Modem WAN COM port.

It not work ;/ i try install also hvsa13ww and nz1wn10w from lenovo webpage and it not work same..

It sounds like, for whatever reason, you have lost your WAN Modem COM Port.

You may have to use a Linux machine to access the modem and restore it to OEM status.

Ohh ;/ Do you have tutorial how do it ? I have bootable usb with linux but i dont remember witch one

Unfortunately, there is not a tutorial, but the issue has been addressed several times on the forum. I would try using the search function.

You might refer to THIS document.