AG35-CEN usb driver

Hello, please send usb drivers for the AG35-CEN modem.
I couldn’t find it on the official website.
I only found quectel_lte5g_windows_usb_driver_v2-7.

But there are no drivers there.

When connecting the ivc unit, only one quectel USB DM Port (Com3) appears.
The remaining ports and the modem do not appear. All drivers are installed on the computer. Modem AG35-CEN.
Please help me, what am I doing wrong?

Is the modem in RNDIS mode?

Could you try the modem in Linux and show the lsusb -t?

(post deleted by author)

RNDIS driver is not compatible with NDIS.
I think you can try to install the RNDIS driver and before that make sure that you have uninstall the NDIS driver.
https://www.quectel.com/download/quectel_lte_windows_usb_driver_rndis_v1-1/

Thanks, I’ll try. Please tell me in RNDIS mode configuration is available qnavigator commands AT?

Yes. We can also see the AT port even the modem in RNDIS mode.

If I delete all drivers and leave only RNDIS driver, then when connecting in the manager there is only Generic USB-EEM Network Adapter, for some reason no other drivers are installed or found.

If I delete all drivers and leave only lte5g_windows_usb_driver_v2-7, ndis then in the manager there is only USB DM Port (Com9), but you can update the driver and manually specify the quectel wireless ethernet adapter driver and quectel USB Composite Device also appears.

In both cases, for some reason, the USB modem device does not appear and the USB AT port, USB DM Port, USB NMEA Port drivers do not appear.
I connect the car telematics and Internet unit via micro usb-USB.
Please help, what am I doing wrong?

The property of the equipment ID in the manager is like this for me
USB\VID_2C7C&PID_0435&REV_0318&MI_00
USB\VID_2C7C&PID_0435&MI_00

If there is only DM port, for my understanding, there would be such possiblilities

  1. The modem is in DUMP state;
  2. The usbnet mode is not compatible. Even you have tried the Quectel RNDIS driver, but the RNDIS driver is not common use and maybe it do not support the AG35;
  3. It is OpenLinux firmware, and the usb configuration is not compatible with the Quectel WIndows Driver.

If you can try the AG35 in Linux PC, it could help us much more.
We can check with

lsusb -t
lsusb
cat /sys/kernel/debug/usb/devices

This photo is possible because I can’t install the drivers.

I have version 6.8.0.41 generic did not find a driver for it. The folder contains only v5.3.1.
It doesn’t install.
Tell me how to install these drivers.

I don’t care the driver for Linux, we just need to know the usb interfaces and the usb descriptors for the AG35 you tried.
Just from the pictures you show, it is not a standard Quectel Module and so that there is no USB AT port for this modem.
There is only the EEM interface for this AG35.
What is the IMEI on the module? Or what is the current firmware version?

There is only such information. Unfortunately, I do not know the Imei. Maybe you can tell me please about a car from China, but I am from Russia. We changed the eSIM to a regular SIM card, the Internet appeared and the application has a connection with the car. But as soon as the car falls asleep after turning off the engine, this happens after 3 minutes, the modem turns off the Internet and there is no connection between the application and the car. The modem rather goes into sleep mode, since calls to the SIM card are made, but the Internet is not turned on. As soon as you open the car with the key, the application immediately connects to the car.

Imei

Please check the imei

This appears to be a custom module.
You should not be able to send AT commands to this module using the USB serial port now. I am sorry about that.