[Bug 1950282] Re: Fibocom WWAN FM350-GL-00 (Mediatek M80 5G) support

Hi,
I'm experiencing the exact same problem as @C6H6 (c6h6vita).

Sorry for bringing up an older bug report again.

In my case, ModemManager was installed automatically alongside KDE when
I installed Kubuntu 25.10.

The newest version (from 18.02.2026) available from the repository for me is:
modemmanager/questing 1.24.2-0ubuntu1 amd64. This one contains the problem.

In another thread, @C6H6 (c6h6vita) mentioned that they installed the package from the following URL:
https://mega.nz/file/CZtzWBZL#VR727-LE12Y9lkicp9eXssQ3AH3qge6KgWIA6BVkHlc

I took a look into the package (because I don't know where they got it from) and then tested it on my system.
Their provided package fixed that issue.
If needed, I'm willing to provide additional information.

Other thread was that one:
https://answers.launchpad.net/ubuntu/+question/819637#5

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https://bugs.launchpad.net/bugs/1950282

Title:
Fibocom WWAN FM350-GL-00 (Mediatek M80 5G) support

Status in HWE Next:
New
Status in OEM Priority Project:
New
Status in libmbim package in Ubuntu:
Fix Released
Status in libqmi package in Ubuntu:
Fix Released
Status in linux package in Ubuntu:
Incomplete
Status in modemmanager package in Ubuntu:
Fix Released
Status in libmbim source package in Jammy:
Fix Released
Status in libqmi source package in Jammy:
Fix Released
Status in linux source package in Jammy:
Confirmed
Status in modemmanager source package in Jammy:
Fix Released

Bug description:
* Impact

Fibocom FM350 modems aren't working with the current version of
modemmanager in 22.04.

* Test case

- install modemmanager, libmbim, and libqmi from -proposed
- reboot and try WWAN function to see if any regression there.
- perform dogfooding of its reverse dependencies (network-
   manager, gnome-control-center etc.)

The verification should be done on FM350 to ensure it's correctly
handled but also on other hardware to verify that there are no
regressions

* Regression potential

The SRU does an update to new modemmanager serie so we should do a
complete round of testing on different hardware and confirm there are
no regression.

-------------------------------

0000:55:00.0 Wireless controller [0d40]: MEDIATEK Corp. Device [14c3:4d75] (rev 01)
        Subsystem: Hewlett-Packard Company Device [103c:8914]

https://lore.kernel.org/linux-
wireless/20211101035635.26999-1-ricardo.martinez@linux.intel.com/

Modemmanager requires >= 1.19.1, the detail info is in
lp:1962525

---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CasperMD5CheckResult: skip
Dependencies:

DistributionChannelDescriptor:
 # This is the distribution channel descriptor for the OEM CDs
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-focal-amd64-20200502-85+fossa-edge-staging+X136
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-07-13 (119 days ago)
InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58
MachineType: Intel Corporation Alder Lake Client Platform
Package: linux-firmware 1.187.20+staging.31
PackageArchitecture: all
ProcFB: 0 i915
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.14.0-9007-oem root=UUID=56278c18-b6d3-4b07-b758-32f574db7ae0 ro i915.force_probe=46c0 automatic-oem-config quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.14.0-9007.7+staging.29-oem 5.14.14
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-5.14.0-9007-oem N/A
 linux-backports-modules-5.14.0-9007-oem N/A
 linux-firmware 1.187.20+staging.31
Tags: focal
Uname: Linux 5.14.0-9007-oem x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 08/23/2021
dmi.bios.vendor: Intel Corporation
dmi.bios.version: ADLPFWI1.R00.2347.A00.2108230957
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: AlderLake-M LP5 RVP
dmi.board.vendor: Intel Corporation
dmi.board.version: 1
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 0.1
dmi.ec.firmware.release: 1.43
dmi.modalias: dmi:bvnIntelCorporation:bvrADLPFWI1.R00.2347.A00.2108230957:bd08/23/2021:efr1.43:svnIntelCorporation:pnAlderLakeClientPlatform:pvr0.1:rvnIntelCorporation:rnAlderLake-MLP5RVP:rvr1:cvnIntelCorporation:ct9:cvr0.1:sku0100000100020000:
dmi.product.family: Alder Lake Client System
dmi.product.name: Alder Lake Client Platform
dmi.product.sku: 0100000100020000
dmi.product.version: 0.1
dmi.sys.vendor: Intel Corporation

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