Can not detect HP lt4120 Snapdragon X5 LTE

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Can not detect HP lt4120 Snapdragon X5 LTE

Postby rossen » Feb 28th, '25, 16:26

Hello,

I have installed HP lt4120 Snapdragon X5 LTE GSM module, but doen't like to work for me :)
After kernel update ask me for pin (Plasma desktop) and after each reboot doen't work. I have tested a lot of ideas to add different lines in udev, but nothing happens
Code: Select all
Bus 001 Device 006: ID 8087:0a2a Intel Corp. Bluetooth wireless interface
Bus 001 Device 007: ID 138a:003f Validity Sensors, Inc. VFS495 Fingerprint Reader
Bus 001 Device 005: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 004: ID 03f0:9d1d HP, Inc HP lt4120 Snapdragon X5 LTE


Code: Select all
[root@localhost ~]# lsmod | grep usbnet
lsmod | grep cdc_ether
lsmod | grep cdc_mbim
lsmod | grep cdc_wdm
lsmod | grep qmi_wwan
usbnet                 61440  4 cdc_mbim,cdc_ncm,qmi_wwan,cdc_ether
mii                    16384  1 usbnet
cdc_ether              24576  1 cdc_ncm
usbnet                 61440  4 cdc_mbim,cdc_ncm,qmi_wwan,cdc_ether
cdc_mbim               16384  0
cdc_ncm                49152  1 cdc_mbim
cdc_wdm                32768  2 cdc_mbim,qmi_wwan
usbnet                 61440  4 cdc_mbim,cdc_ncm,qmi_wwan,cdc_ether
cdc_wdm                32768  2 cdc_mbim,qmi_wwan
qmi_wwan               40960  0
cdc_wdm                32768  2 cdc_mbim,qmi_wwan
usbnet                 61440  4 cdc_mbim,cdc_ncm,qmi_wwan,cdc_ether


Dmesg:
Code: Select all
[    1.611143] usb 1-1.2: new high-speed USB device number 4 using ehci-pci
[    1.725323] usb 1-1.2: New USB device found, idVendor=03f0, idProduct=9d1d, bcdDevice= 2.28
[    1.725337] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    1.725341] usb 1-1.2: Product: HP lt4120 Snapdragon X5 LTE
[    1.725344] usb 1-1.2: Manufacturer: HP
[    1.725359] usb 1-1.2: SerialNumber: 0123456789ABCDEF
[   17.738071] usbcore: registered new interface driver cdc_wdm
[   17.745875] cdc_ether 1-1.2:2.0 eth1: register 'cdc_ether' at usb-0000:00:12.0-1.2, CDC Ethernet Device, 32:84:81:40:eb:ae
[   17.745976] usbcore: registered new interface driver cdc_ether
[   17.824018] cdc_ether 1-1.2:2.0 enp0s18u1u2c2: renamed from eth1
[   20.785959] cdc_ether 1-1.2:2.0 enp0s18u1u2c2: unregister 'cdc_ether' usb-0000:00:12.0-1.2, CDC Ethernet Device
Last edited by isadora on Feb 28th, '25, 17:22, edited 1 time in total.
Reason: Command-output between [CODE/]-tags please.
rossen
 
Posts: 4
Joined: Nov 18th, '23, 23:00

Re: Can not detect HP lt4120 Snapdragon X5 LTE

Postby doktor5000 » Feb 28th, '25, 17:46

Hi there, you may need to switch between the 3 modes using usb_modeswitch, see e.g. https://www.draisberghof.de/usb_modeswi ... php?t=2630
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