LG VL600 usb modem woes

pictsidhe · 01-30-2018, 09:24 PM

I'm getting nowhere with this.

Code:

pictsidhe@T61:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 17.10
Release:	17.10
Codename:	artful

pictsidhe@T61:~$ uname -r
4.13.0-32-generic

pictsidhe@T61:~$ lsusb
Bus 002 Device 004: ID 1004:61aa LG Electronics, Inc. 
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 17ef:480f Lenovo Integrated Webcam [R5U877]
Bus 001 Device 003: ID 0a5c:217f Broadcom Corp. BCM2045B (BDC-2.1)
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

with modem in:

Code:

pictsidhe@T61:~$ ls /dev/ttyACM*
/dev/ttyACM0

pulled modem, ttyACM0 is gone

Code:

pictsidhe@T61:~$ iwconfig
wwx64995dfa64d2  no wireless extensions.

enp0s25   no wireless extensions.

wlp3s0    IEEE 802.11  ESSID:"Box_of_frogs"  
          Mode:Managed  Frequency:2.427 GHz  Access Point: 50:C7:BF:2B:97:E2   
          Bit Rate=121.5 Mb/s   Tx-Power=15 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=57/70  Signal level=-53 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:50   Missed beacon:0

lo        no wireless extensions.

pictsidhe@T61:~$ sudo ifconfig -a
enp0s25: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 5c:ff:35:03:54:0f  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 20  memory 0xf2400000-f2420000  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 110  bytes 7774 (7.7 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 110  bytes 7774 (7.7 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.103  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::c4b1:a4f6:e4d1:ecfd  prefixlen 64  scopeid 0x20<link>
        ether 00:23:14:98:36:00  txqueuelen 1000  (Ethernet)
        RX packets 2145  bytes 1181696 (1.1 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1431  bytes 203639 (203.6 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wwx64995dfa64d2: flags=4226<BROADCAST,NOARP,MULTICAST>  mtu 1500
        ether 64:99:5d:fa:64:d2  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

pictsidhe@T61:~$ sudo ifconfig wwx64995dfa64d2 up
pictsidhe@T61:~$ sudo ifconfig -a
enp0s25: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 5c:ff:35:03:54:0f  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 20  memory 0xf2400000-f2420000  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 113  bytes 8065 (8.0 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 113  bytes 8065 (8.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.103  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::c4b1:a4f6:e4d1:ecfd  prefixlen 64  scopeid 0x20<link>
        ether 00:23:14:98:36:00  txqueuelen 1000  (Ethernet)
        RX packets 2228  bytes 1225311 (1.2 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1469  bytes 207862 (207.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wwx64995dfa64d2: flags=4291<UP,BROADCAST,RUNNING,NOARP,MULTICAST>  mtu 1500
        inet6 fe80::6699:5dff:fefa:64d2  prefixlen 64  scopeid 0x20<link>
        ether 64:99:5d:fa:64:d2  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 8  bytes 1192 (1.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

/etc/wvdial.conf:

Code:

[Dialer Defaults]
Phone = #777
Username =xxxyyyzzzz
Password = 
New PPPD = yes
modem = /dev/ttyACM0

I put phone and username in according to a blog I saw, somewhere. It doesn't matter right now as:

Code:

pictsidhe@T61:~$ sudo wvdial
--> WvDial: Internet dialer version 1.61
--> Initializing modem.
--> Sending: ATZ
--> Sending: ATQ0
--> Re-Sending: ATZ
--> Modem not responding.

pictsidhe@T61:~$ rfkill list
0: tpacpi_bluetooth_sw: Bluetooth
	Soft blocked: no
	Hard blocked: no
1: hci0: Bluetooth
	Soft blocked: yes
	Hard blocked: no
2: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

It seems to load the vl600 driver:

pictsidhe@T61:~$ lsmod | grep lg
lg_vl600 16384 0
cdc_ether 16384 1 lg_vl600
usbnet 45056 2 lg_vl600,cdc_ether

pulling the modem and doing rmmod lg_vl600 removes them, they reload on replugging the modem

ls -a /dev, ls -a /media/pictsidhe, df, and fdisk-l can't find a drive, so modeswitch shouldn't be needed?

Network manager applet can't find a mobile broadband device to add. Likely connected with wvdial not getting a response. I strongly suspect that this is the root of my problem.
Once I can get it going, I want to put it on my raspberry router, which is headless and lacking network manager. I'm currently trying on a laptop.

I'm failing to find many people having trouble with this device, which is not helpful for me...

pictsidhe · 01-30-2018, 09:26 PM

Forgot to say, it's a working SIM. The xxxyyyzzzz in wvdial.conf is the phone number of the SIM

ferrari · 01-30-2018, 10:12 PM

Starting from the top, which service provider network are you trying to connect to?

Some well known mobile broadband service provider settings...
https://zoomtel.zendesk.com/hc/en-us...vider-settings

A basic check to see if a modem device is detected (which it should be) is to run as root

Code:

wvdialconf /etc/wvdial.conf

It should report back with something like

Code:

Found an USB modem on /dev/ttyACM0.
Modem configuration written to /etc/wvdial.conf.
ttyACM0<Info>: Speed 460800; init "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0"

As you can see it will overwrite the existing /etc/wvidal.conf, so you can specify another file name if desired. From this you can edit with the appropriate phone number, and any required credentials (not always needed depending on telco).

pictsidhe · 01-31-2018, 04:35 AM

I'm trying to use verizon, thanks for the link, it could be useful if I can persuade wvdial to find the modem.

identical response to just doing wvdial

ferrari · 01-31-2018, 06:58 PM

Your experience seems to echo what has been reported in this old Ubuntu thread, which I've shared here just in case there's some useful information to help progress things for you. I note that this device is capable of 4G connectivity (using the CDC Ethernet interface), but I'm not sure why NetworkManager can't handle it as expected.

Let's take a closer look at how the device is enumerated by the lsusb. Filtered for the device chipset (1004:61aa)

Code:

lsusb -v |awk '/1004:61aa/' RS="\n\n"

We can also take a look at the drivers associated with this chipset using

Code:

usb-devices|awk '/61aa/' RS="\n\n"