Automatic Activation, Hotplug and UDEV, Configuration
Post Reply
emma
Posts: 3
Joined: 27 Apr 2025, 13:15

How to make modeswitch persitently? (0bda:012b -> :b832)

Post by emma » 27 Apr 2025, 13:43

Hello
I've got a noname WLAN dongle for the using with Linux Mint 20.3 which is detected as 0bda:012b first and 0bda:b832 after usb-modeswitch.
The problem is that the device freezes my computers at boot time. Sometimes computers freeze at POST but mostly when Linux Mint boots.
I've read that it could be possible to make the modeswitch persistently.

Is there a chance to do it for this device?
Is there a chance to do it for a noob like me?

Or is there a fitting tutorial that I haven't found?

Josh
Site Admin
Posts: 6593
Joined: 03 Nov 2007, 00:30

Re: How to make modeswitch persitently? (0bda:012b -> :b832)

Post by Josh » 04 May 2025, 11:19

Unfortunately, it's usually not possible to make the mode switch permanent. There were some specific modems that allowed this via AT commands, but you'd need the documentation for that, and that method doesn't apply to WLAN devices.

emma
Posts: 3
Joined: 27 Apr 2025, 13:15

Re: How to make modeswitch persitently? (0bda:012b -> :b832)

Post by emma » 04 May 2025, 15:14

Thanks for the info.
So I'll look if wlan device could be ignored on boot. I imagine it's possible with udev rules, but it might not work as early as it needs to.

Josh
Site Admin
Posts: 6593
Joined: 03 Nov 2007, 00:30

Re: How to make modeswitch persitently? (0bda:012b -> :b832)

Post by Josh » 04 May 2025, 18:54

If you have problems even before the operating system loads, you might want to look into the BIOS settings. I'd disable any options to boot from USB, if that's possible.

emma
Posts: 3
Joined: 27 Apr 2025, 13:15

Re: How to make modeswitch persitently? (0bda:012b -> :b832)

Post by emma » 04 May 2025, 20:02

During the first tests with the new WLAN stick, one computer froze during POST, but after that I could no longer reproduce the behavior.
My main goal now is to get Linux boot properly.

Nevertheless I've looked into Bios, but there were no other devices shown from which computer could boot except SSD/HDD.
All other boot options except hdd/ssd were disabled.

Post Reply