Mobile Broadband cannot connect Ubuntu 16.04 with EM7455 Qualcomm Snapdragon X7 LTE-A Lenovo Thinkpad X260 notebook

16.04 networking wireless network-manager modem-manager

6,351

I had also a similar issue, the only difference is that I have a Fibocom Cat6 L830-EB 4G LTE.

I don't know if this might help you, but i fixed the issue with downloading the ,,Modem Manager GUI'' from the Ubuntu Software center.

I have a Thinkpad T480 with Ubuntu 16.04 LTS. I hope this may help anyone.

6,351

Marián Zeke Šedaj

Updated on September 18, 2022

Comments

Marián Zeke Šedaj over 1 year

I have a little problem installing a modem in my new Lenovo Thinkpad X260 notebook. The model of the modem is Sierra Wireless EM7455 Qualcomm Snapdragon X7 LTE-A and OS is Ubuntu 16.04.

At the login screen into Ubuntu, I had an popup to enter the PIN so I have disabled PIN for the SIM card in a mobile phone. This is an absolutely fresh installation of Ubuntu downloaded and installed May 2017 with absolutely nothing else installed, only tried to run the modem. The output is

Mobile Broadband - not enabled in Network Manager.

I have tried creating a new connection in Settings > Network > Mobile broadband, but after creating it, it's not possible to click on it any more, it doesn't show up anywhere. When I click network manager I can create a new network via Edit Connections, but again, this newly created connection isn't listed anywhere. I also tried a software called Sakis3G but with no luck. I don't want to switch to Windows just because of this.

Things I found somewhere & tried:

First thing I did was to put the sim card into the mobile phone. Internet works there, and I've disabled PIN on the card. Moreover, I have tested the modem in Windows 7 and 10 and in both, it works.

I have created a file /etc/udev/rules.d/99-sierra.rules with following content:

ACTION!="add|change", GOTO="mbim_to_qmi_rules_end" 
SUBSYSTEM!="usb|drivers", GOTO="mbim_to_qmi_rules_end"    

# load qmi_wwan module
SUBSYSTEM=="usb", \
ATTR{idVendor}=="1199", ATTR{idProduct}=="9079", \
RUN+="/sbin/modprobe -b qmi_wwan"

SUBSYSTEM=="usb", \
ATTR{idVendor}=="1199", ATTR{idProduct}=="9079", \
ATTR{bConfigurationValue}="1"

# add the new id in the qmi_wwan driver
SUBSYSTEM=="drivers", \
ENV{DEVPATH}=="/bus/usb/drivers/qmi_wwan", \
ATTR{new_id}="1199 9079"

# load qcserial module
SUBSYSTEM=="usb", \
ATTR{idVendor}=="1199", ATTR{idProduct}=="9079", \
RUN+="/sbin/modprobe -b qcserial"

# add the new id in the qcserial driver
SUBSYSTEM=="drivers", \
ENV{DEVPATH}=="/bus/usb-serial/drivers/qcserial", \
ATTR{new_id}="1199 9079"

LABEL="mbim_to_qmi_rules_end"

I added at the bottom of a file /etc/modules
```
usbserial vendor=0x1199 product=0x9079
```

I created /etc/usb_modeswitch.d/1199:9079 with contents:

DefaultVendor= 0x1199
DefaultProduct=0x9079
TargetVendor= 0x1199 
TargetProduct= 0x9079
CheckSuccess=20 
MessageContent="55534243123456780000000000000606f5
0402527000000000000000000000"

Output of some commands:

$ lsb_release -a; uname -a; lsusb
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial
Linux arachis 4.8.0-36-generic #36~16.04.1-Ubuntu SMP Sun Feb 5 09:39:57 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 138a:0017 Validity Sensors, Inc. Fingerprint Reader
Bus 001 Device 004: ID 5986:0706 Acer, Inc
Bus 001 Device 002: ID 1199:9079 Sierra Wireless, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ sudo lshw -short
H/W path Device Class Description
==========================================================
                                system 20F5S2VA00 (LENOVO_MT_20F5_BU_Thi
/0 bus 20F5S2VA00
/0/3 memory 64KiB L1 cache
/0/4 memory 64KiB L1 cache
/0/5 memory 512KiB L2 cache
/0/6 memory 3MiB L3 cache
/0/7 processor Intel(R) Core(TM) i5-6200U CPU @
/0/8 memory 8GiB System Memory
/0/8/0 memory 8GiB SODIMM Synchronous 2133 MHz
/0/8/1 memory [empty]
/0/8/2 memory [empty]
/0/8/3 memory [empty]
/0/e memory 128KiB BIOS
/0/100 bridge Sky Lake Host Bridge/DRAM Registe
/0/100/2 display Sky Lake Integrated Graphics
/0/100/14 bus Intel Corporation
/0/100/14/0 usb1 bus xHCI Host Controller
/0/100/14/0/3 communication Sierra Wireless EM7455 Qualcomm S
/0/100/14/0/8 multimedia Integrated Camera
/0/100/14/0/9 generic Fingerprint Reader
/0/100/14/1 usb2 bus xHCI Host Controller
/0/100/14.2 generic Intel Corporation
/0/100/16 communication Intel Corporation
/0/100/17 storage Intel Corporation
/0/100/1c bridge Intel Corporation
/0/100/1c/0 generic Realtek Semiconductor Co., Ltd.
/0/100/1c.2 bridge Intel Corporation
/0/100/1c.2/0 wlp4s0 network Wireless 8260
/0/100/1f bridge Intel Corporation
/0/100/1f.2 memory Memory controller
/0/100/1f.3 multimedia Intel Corporation
/0/100/1f.4 bus Intel Corporation
/0/100/1f.6 enp0s31f6 network Ethernet Connection I219-V
/0/0 scsi1 storage
/0/0/0.0.0 /dev/sda disk 256GB SanDisk SD8TB8U2
/0/0/0.0.0/1 /dev/sda1 volume 231GiB EXT4 volume
/0/0/0.0.0/2 /dev/sda2 volume 7618MiB Extended partition
/0/0/0.0.0/2/5 /dev/sda5 volume 7618MiB Linux swap / Solaris part
/1 power 45N1773
/2 power 45N1775
/3 wwp0s20f0u3i12 network Ethernet interface

$ sudo lshw -C network
  *-network
       description: Wireless interface
       product: Wireless 8260
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlp4s0
       version: 3a
       serial: e4:a4:71:ef:42:6e
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=4.8.0-36-generic firmware=21.302800.0 ip=192.168.0.21 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:126 memory:f1000000-f1001fff
  *-network
       description: Ethernet interface
       product: Ethernet Connection I219-V
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: enp0s31f6
       version: 21
       serial: c8:5b:76:4b:4d:2e
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.13-3 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:123 memory:f1200000-f121ffff
  *-network DISABLED
       description: Ethernet interface
       physical id: 3
       logical name: wwp0s20f0u3i12
       serial: 36:33:6f:65:e0:32
       capabilities: ethernet physical
       configuration: broadcast=yes driver=cdc_mbim driverversion=22-Aug-2005 firmware=CDC MBIM link=no multicast=yes

$ sudo lshw -C communication
 *-usb:0
       description: Communication device
       product: Sierra Wireless EM7455 Qualcomm Snapdragon X7 LTE-A
       vendor: Sierra Wireless, Incorporated
       physical id: 3
       bus info: usb@1:3
       version: 0.06
       serial: LF63560757041014
       capabilities: usb-2.10
       configuration: driver=cdc_mbim maxpower=500mA speed=480Mbit/s
  *-communication
       description: Communication controller
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 16
       bus info: pci@0000:00:16.0
       version: 21
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list
       configuration: driver=mei_me latency=0
       resources: irq:125 memory:f124b000-f124bfff

$ dpkg --get-selections | grep libmbim
libmbim-glib-dev:amd64 install
libmbim-glib-doc install
libmbim-glib0:amd64 install
libmbim-glib4:amd64 install
libmbim-glib4-dbg install
libmbim-proxy install
libmbim-utils install

$ dpkg --get-selections | grep libqmi
libqmi-glib-dev:amd64 install
libqmi-glib-doc install
libqmi-glib0:amd64 install
libqmi-glib0-dbg install
libqmi-glib1:amd64 install
libqmi-glib1-dbg install
libqmi-proxy install
libqmi-utils install

$ uname -r
4.8.0-36-generic

$ cat /etc/*-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.2 LTS"
NAME="Ubuntu"
VERSION="16.04.2 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.2 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

$ usb-devices
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh=12
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev=04.08
S: Manufacturer=Linux 4.8.0-36-generic xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:00:14.0
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub

T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1199 ProdID=9079 Rev=00.06
S: Manufacturer=Sierra Wireless, Incorporated
S: Product=Sierra Wireless EM7455 Qualcomm Snapdragon X7 LTE-A
S: SerialNumber=LF63560757041014
C: #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=qcserial
/usr/bin/usb-devices: line 79: printf: c: invalid number
I: If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
/usr/bin/usb-devices: line 79: printf: d: invalid number
I: If#= 0 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=qcserial
I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=qcserial

T: Bus=01 Lev=01 Prnt=01 Port=07 Cnt=02 Dev#= 4 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=5986 ProdID=0706 Rev=00.12
S: Manufacturer=SunplusIT Inc
S: Product=Integrated Camera
C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=0e(video) Sub=01 Prot=00 Driver=uvcvideo
I: If#= 1 Alt= 0 #EPs= 0 Cls=0e(video) Sub=02 Prot=00 Driver=uvcvideo

T: Bus=01 Lev=01 Prnt=01 Port=08 Cnt=03 Dev#= 5 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=ff(vend.) Sub=11 Prot=ff MxPS= 8 #Cfgs= 1
P: Vendor=138a ProdID=0017 Rev=00.78
S: SerialNumber=af9c0fff2423
C: #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)

T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 6
D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1
P: Vendor=1d6b ProdID=0003 Rev=04.08
S: Manufacturer=Linux 4.8.0-36-generic xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:00:14.0
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub

$ cat /var/log/syslog | tail -15
May 24 21:01:49 arachis ModemManager[2749]: <warn> (ttyUSB1): port attributes not fully set
May 24 21:01:49 arachis ModemManager[2749]: <warn> (ttyUSB2): port attributes not fully set
May 24 21:01:51 arachis ModemManager[2749]: <info> Couldn't find support for device at '/sys/devices/pci0000:00/0000:00:1c.2/0000:04:00.0': not supported by any plugin
May 24 21:01:51 arachis ModemManager[2749]: <info> Couldn't find support for device at '/sys/devices/pci0000:00/0000:00:1f.6': not supported by any plugin
May 24 21:02:05 arachis ModemManager[2749]: <info> Creating modem with plugin 'Gobi' and '5' ports
May 24 21:02:05 arachis ModemManager[2749]: <warn> Could not grab port (usbmisc/cdc-wdm0): 'Cannot add port 'usbmisc/cdc-wdm0', unsupported'
May 24 21:02:05 arachis ModemManager[2749]: <warn> Could not grab port (tty/ttyUSB1): 'Cannot add port 'tty/ttyUSB1', unhandled serial type'
May 24 21:02:05 arachis ModemManager[2749]: <warn> (ttyUSB2): port attributes not fully set
May 24 21:02:05 arachis ModemManager[2749]: <info> Modem for device at '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-3' successfully created
May 24 21:02:05 arachis ModemManager[2749]: <warn> Modem couldn't be initialized: Couldn't check unlock status: SIM failure
May 24 21:02:05 arachis ModemManager[2749]: <info> Modem: state changed (unknown -> failed)
May 24 21:02:05 arachis NetworkManager[887]: <info> [1495652525.5797] manager: (ttyUSB2): new Broadband device (/org/freedesktop/NetworkManager/Devices/5)
May 24 21:02:05 arachis NetworkManager[887]: <info> [1495652525.5813] device (ttyUSB2): state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
May 24 21:02:05 arachis NetworkManager[887]: <info> [1495652525.5822] device (ttyUSB2): modem state 'failed'
May 24 21:02:05 arachis NetworkManager[887]: <warn> [1495652525.5839] (ttyUSB2): failed to retrieve SIM object: No SIM object available