Sierra Wireless EM7455

[scopa]

This is internal verizon broadband card. How can I get it working on 18.1?
Network Manager shows mobile broadband unavailable. It does show the IMEI but never completed the Add New Connection
Does anyone know how to rectify this?

Code: Select all

inxi-Fxz
Does not see the card
lspci
Does not see the card
lshw
Does see the card:
sudo lshw
*-usbhost:1
                product: xHCI Host Controller
                vendor: Linux 4.4.0-77-generic xhci-hcd
                physical id: 1
                bus info: usb@1
                logical name: usb1
                version: 4.04
                capabilities: usb-2.00
                configuration: driver=hub slots=12 speed=480Mbit/s
              *-usb:0
                   description: Communication device
                   product: Sierra Wireless EM7455 Qualcomm Snapdragon X7 LTE-A
                   vendor: Sierra Wireless, Incorporated
                   physical id: 2
                   bus info: usb@1:2
                   version: 0.06
                   serial: LF55060082041013
                   capabilities: usb-2.10
                   configuration: driver=cdc_mbim maxpower=500mA speed=480Mbit/s
lsusb
Does see the card
Bus 001 Device 002: ID 1199:9079 Sierra Wireless, Inc.

[JeremyB]

https://askubuntu.com/a/772731/300665 might help you out as it deals with the same device

[scopa]

Thanks

I did follow the link.steps but after reboot

T: Bus=01 Lev=01 Prnt=01 Port=01 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=LF55060082041013
C: #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=500mA
/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=qmi_wwan
/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=qmi_wwan

Not sure what this means.

[pdc_2]

I remember a similar post recently; and there was the promise that it would work "out of the box" with a newer kernel

this link https://lists.freedesktop.org/archives/ ... 03178.html suggests that > 4.7 should work;

4.10 is now available in Update Manager: do you know where to find it? update manager ...... view .... down to Linux Kernels

I would suggest you install 4.10.0-20 as it is the latest; and reboot; and see if things go better; you can always go back to the earlier kernel if you so wish

[scopa]

Thanks PDC

I have upgraded to 4.10

I tested still no go. I then removed the udev rules file from previous link rebooted again and still getting below


T: Bus=01 Lev=01 Prnt=01 Port=01 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=LF55060082041013
C: #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=500mA
/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

[scopa]

also libmbim/mbim-proxy is at 100% cpu

[scopa]

I just rebuilt the box and upgraded directly to 4.10

Now I see the device under network manager. mbim-proxy has stopped CPU spike

But I still cannot configure the connection via network manager.

nmcli r
shows WWAN enabled
nmcli device status
cdc-wdm1 gsm unavailable


Any ideas?

[scopa]

mmcli -m 0

/org/freedesktop/ModemManager1/Modem/0 (device id '11b74fcc836b7e3b577c3b76e86e680111e9559e')
-------------------------
Hardware | manufacturer: 'Sierra'
| model: 'MBIM [1199:9079]'
| revision: 'SWI9X30C_02.08.02.00'
| supported: 'gsm-umts, lte'
| current: 'gsm-umts, lte'
| equipment id: '014582000330184'
-------------------------
System | device: '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2'
| drivers: 'cdc_mbim'
| plugin: 'Sierra'
| primary port: 'cdc-wdm1'
| ports: 'wwp0s20f0u2i12 (net), cdc-wdm1 (mbim)'
-------------------------
Numbers | own : 'unknown'
-------------------------
Status | lock: 'none'
| unlock retries: 'sim-pin2 (3)'
| state: 'disabled'
| power state: 'low'
| access tech: 'unknown'
| signal quality: '0' (cached)
-------------------------
Modes | supported: 'allowed: 3g, 4g; preferred: none'
| current: 'allowed: 3g, 4g; preferred: none'
-------------------------
Bands | supported: 'unknown'
| current: 'unknown'
-------------------------
IP | supported: 'ipv4, ipv6, ipv4v6'
-------------------------
3GPP | imei: '014582000330184'
| enabled locks: 'fixed-dialing'
| operator id: 'unknown'
| operator name: 'unknown'
| subscription: 'unknown'
| registration: 'unknown'
-------------------------
SIM | path: '/org/freedesktop/ModemManager1/SIM/0'


mmcli -m 0 -e
error: couldn't enable the modem: 'GDBus.Error:org.freedesktop.libmbim.Error.Status.Failure: Failure'

[pdc_2]

you have the hardware and I would suggest you join the Modem Manager list; and talk directly to the experts: https://lists.freedesktop.org/mailman/l ... ager-devel

please let us know how it gets on; normally such groups are very welcoming and helpful;

_____________________

EDIT: I remembered seeing this thread on Ask Ubuntu recently: https://askubuntu.com/questions/763238/ ... untu-16-04 is there anything in the final post from Jonathon that is useful to you?

and from the thread Jeremy quoted, https://askubuntu.com/questions/747959/ ... 731#772731

did you install libqmi-utils and added the file 99-sierra.rules to /etc/udev/rules.d/

___________________________________

EDIT 2: BTW, which make of laptop is this in? I ask as there is much discussion on whether the laptop is Lenovo or other ....... that seems to affect what will work; and what may not;

https://lists.freedesktop.org/archives/ ... 03038.html

[grimmer]

Are you still having issues with this?
I cannot get mine to work either I am on a Lenovo Carbon X1 4th Gen and I'm running on 4.10

It has worked for me before out of the box on Ubuntu 16.10.