Automatic Activation, Hotplug and UDEV, Configuration
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Posts: 1
Joined: 06 Dec 2022, 23:28

Pls help identify and switch mode 0x19d2 0x0548

Post by geektraf » 06 Dec 2022, 23:39

Hi all.

I have an unidentified Chinese modem that works fine under Windows and works extremely poorly under Linux (extremely low downlink speed). I suspect that the reason is the wrong mode of its operation (RNDIS) and that it needs to be switched to another mode. Right now, it is in ethernet mode (dhclient -v eth_interface gets the IP address). However, since I can't figure out what kind of modem it is, I don't understand how I can switch it to another mode.
p1@p1:~$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 17ef:6047 Lenovo ThinkPad Compact Keyboard with TrackPoint
Bus 001 Device 013: ID 19d2:0548 ZTE WCDMA Technologies MSM ZXIC Mobile Boardband
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
My task is to use this modem in a Linux server and be able to both receive telemetry data (signal strength, cellular tower data, etc.) and manage it remotely (reboot, change IP address, etc.). If someone can tell me how to do this and what is the best mode for this task, I would be grateful.


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