Solved umodem0 / Fibocom problems after install

Hi all, I need help with installing FreeBSD. After I recently found my way back to Linux and was on Artix and later on Chimera Linux (BSD userland) for a short time, I wanted to take the step into the BSD world.

The installation is a piece of cake thanks to the installer, but after the installation I can't continue with my configuration because my TTY is spammed. The following message appears every 5 seconds:

"ugen0.3: <FIBOCOM L830-EB-00> at usbus0 (disconnected) umodem0: at uhub0, port 6, addr 22 (disconnected) umodem0: detached umodem0: <FIBOCOM L830-EB-00, class 239/2, rev 2.00/3.33, addr 32> on usbus0 umodem0: data interface 3, has no CM over data, has break"

The "rev 2.00/3.33" (33-34-35...) is consecutive.

According to my desperate research, this is the LTE module in my ThinkPad T480s. I do not need this. Is there a way to disable it or otherwise solve the problem? The error message keeps repeating itself, so I can't do anything with FreeBSD. :-/

Add: Found on bsd-hardware, but that doesn't solve my problem yet: https://bsd-hardware.info/?id=usb:2cb7-0210

Add2:
I have already tried to execute the command power_off via "usbconfig", this leads to the message:
"umodem0: at uhub1, port 6, addr 36 (disconnected) umodem0: detached"
After that, however, the message mentioned at the beginning appears again every 5 seconds.

Add3: The message appears even without logging in as user or root and simply spams my screen.
 
Useful tip, switch to the second virtual TTY (ALT-F2). It's only the first that would get spammed with kernel messages.
 
Thanks SirDice!

I have found a solution for all those who don't want to use the LTE module anyway: In the BIOS of the ThinkPad under Security -> I/O Devices there are two entries for Network. The second is the WWAN module. Deactivate it there and the error message as described above will no longer appear.
 
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