Qualcomm Snapdragon X12 LTE Modem

Grzesiek Sójka

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Aug 17, 2020, 7:40:05 PM8/17/20

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Hi there,

I have a tablet equipped with the modem mentioned above. I do not have
any experience with such devices. I would be grateful for some links
with some information how to use it on Debian.

regards

deloptes

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Aug 17, 2020, 9:30:04 PM8/17/20

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Is your tablet running debian - can you share make and model of the tablet?

Celejar

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Aug 17, 2020, 10:10:04 PM8/17/20

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Are you trying to install Debian on the tablet (or have already done
so), or do you want to use the tablet and its modem to connect a Debian
system to a network?

Celejar

Grzesiek Sójka

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Aug 18, 2020, 4:20:05 AM8/18/20

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Hi there,

To be more specific: I already installed Debian Sid and the tablet is HP
Elite X2 1013 G3. I'm trying to learn how to use the modem mentioned to
connect to the internet.

Celejar

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Aug 18, 2020, 9:30:07 AM8/18/20

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Disclaimer: I have no experience with this sort of thing, but here are
some possible leads.

This post claims that LTE on that device works under linux:

https://www.reddit.com/r/linux/comments/9sxymj/linux_driver_compatibility_with_modern_2in1/

You may need something like the 'libmbim-utils' package. Perhaps
this page will help you out:

https://gist.github.com/Juul/e42c5b6ec71ce11923526b36d3f1cb2c

Another option seems to be the 'modemmanager' package. This seems to be
a higher level tool (it has dependencies on some libmbim packages).

Celejar

Grzesiek Sójka

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May 25, 2021, 3:30:04 PM5/25/21

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Hi there,

I managed to connect _but_ I do no know how to obtain address. I tried:

udhcpc -q -f -n -i wwan0

no luck, unfortunately. Any suggestions?

To connect I use the following:

# mmcli -m 0 --simple-connect="apn=darmowy"
successfully connected the modem
# mmcli -m 0
------------------------------------
General | dbus path:
/org/freedesktop/ModemManager1/Modem/0
| device id:
09cd50ccb01495e91195c6792755a95ef0ad604c
------------------------------------
Hardware | manufacturer: Qualcomm
| model: Snapdragon(TM) X12 LTE-A
| firmware revision: T77W676.F0.0.0.4.7.GC.017
| 041
| h/w revision: Snapdragon(TM) X12 LTE-A
| supported: gsm-umts, lte
| current: gsm-umts, lte
| equipment id: 359195080308286
------------------------------------
System | device:
/sys/devices/pci0000:00/0000:00:14.0/usb2/2-3
| drivers: cdc_mbim
| plugin: generic
| primary port: cdc-wdm2
| ports: cdc-wdm2 (mbim), wwan0 (net)
------------------------------------
Status | unlock retries: sim-pin2 (3)
| state: connected
| power state: on
| access tech: lte
| signal quality: 9% (recent)
------------------------------------
Modes | supported: allowed: 3g; preferred: none
| allowed: 4g; preferred: none
| allowed: 3g, 4g; preferred: 4g
| allowed: 3g, 4g; preferred: 3g
| current: allowed: 3g, 4g; preferred: 4g
------------------------------------
Bands | supported: utran-1, utran-4, utran-6,
| utran-5, utran-8, utran-2,
| eutran-1, eutran-2, eutran-3,
| eutran-4, eutran-5, eutran-7,
| eutran-8,
| eutran-12, eutran-13, eutran-17,
| eutran-18, eutran-19, eutran-20,
| eutran-21, eutran-25, eutran-26,
| eutran-28, eutran-29, eutran-30,
| eutran-38, eutran-39, eutran-40,
| eutran-41, eutran-66, utran-19
| current: utran-1, utran-4, utran-6,
| utran-5, utran-8, utran-2,
| eutran-1, eutran-2, eutran-3,
| eutran-4, eutran-5, eutran-7,
| eutran-8,
| eutran-12, eutran-13, eutran-17,
| eutran-18, eutran-19, eutran-20,
| eutran-21, eutran-25, eutran-26,
| eutran-28, eutran-29, eutran-30,
| eutran-38, eutran-39, eutran-40,
| eutran-41, eutran-66, utran-19
------------------------------------
IP | supported: ipv4, ipv6, ipv4v6
------------------------------------
3GPP | imei: 3591950803
| enabled locks: fixed-dialing
| operator id: 26001
| operator name: Aero2
| registration: home
------------------------------------
3GPP EPS | initial bearer dbus path:
/org/freedesktop/ModemManager1/Bearer/0
------------------------------------
SIM | dbus path: /org/freedesktop/ModemManager1/SIM/0
------------------------------------
Bearer | dbus path:
/org/freedesktop/ModemManager1/Bearer/1

Regards
Greg

Grzesiek

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May 25, 2021, 5:00:04 PM5/25/21

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On 5/25/21 10:33 PM, Polyna-Maude Racicot-Summerside wrote:
> Hi !
> How about using dhclient ?

Does not work (like udhcpc).

Greg

Grzesiek

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May 25, 2021, 5:20:04 PM5/25/21

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