3G modem serial ports not detected

[Ricardo Rodriguez Salinas]

Hi team, I want to install a 3G USB modem from Huawei exactly the e173 one in a Nexbox A95X 1/8 TVBOX, I can see the modem is on modem mode  in lsusb, but I cant get work that modem. I can't see the serial ports that supposed to be in /dev/ directory, can you help me?

 

Edited October 9, 2018 by Ricardo Rodriguez Salinas

[balbes150]

The version of the image and the kernel you're trying, should we guess for ourselves ?

[Ricardo Rodriguez Salinas]

thanks for your quick response, sorry I'm new here I don't know how to write down in this kind of topics

 

I got installed this one

 ARMBIAN 5.60 user-built Ubuntu 18.04.1 LTS 4.18.7-aml-s9xxx
 

 

The modem is detected but I can't see the serial ports

root@A95X:~# lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 12d1:1c05 Huawei Technologies Co., Ltd. Broadband stick (modem on)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root@A95X:~# ls -la /dev/ttyUSB*
ls: cannot access '/dev/ttyUSB*': No such file or directory
 

 

thanks

[martinayotte]

3 minutes ago, Ricardo Rodriguez Salinas said:

The modem is detected but I can't see the serial ports

Maybe because it is appearing as other kind of devices, such /dev/ttyACM* ...

Check what "dmesg" is reporting, could be that specific driver is not present in this kernel ...

[Ricardo Rodriguez Salinas]

 

With or without the modem inserted, shows me the same tty* files

[martinayotte]

According to "dmesg" output, no driver is associated with USB insertion ...

Check the possibility of presence/absence of those kernel configs :

grep USB_SERIAL_OPTION /boot/config-*
grep USB_NET_QMI_WWAN /boot/config-*
grep CONFIG_USB_NET_HUAWEI_CDC_NCM /boot/config-*

 

[John Minaa]

I am also facing an issue in my 3G modem serial ports,  I think it is COM Port Selection related issue.  
Error is "Device connected, Serial open failed". Can anyone guide me, that how can I resolve this issue.?