Vodafone/ZTE K3565-Z 3G USB Modem in Ubuntu (Linux)

Well, got the modem some time back, but because it wasn’t automatically detected in Ubuntu Hardy 8.04, I didn’t mess with it again. Just the other day, decided to give it a shot again. I believe there was an update to udev on 11 Apr, and now the “ZeroCD” that gets detected and created is automatically ejected by the /etc/udev/rules.d/45-vmc-zte.rules… or was it because I had earlier tried to install the linux version of VMC Connect? Anyway, if the CDROM doesn’t get auto-ejected, eject it yourself. That serves as a trigger to the modem to switch to SD/MMC card reader mode, with the modem interface being available once you modprobe usbserial.

sudo modprobe usbserial vendor=0×19d2 product=0×0063

Thereafter, if you check the dmesg log, you should see 5 ttyUSB devices being created, 0-4. /dev/ttyUSB3 is the right modem interface, at least for me. Salient parts of my /etc/wvdial.conf:

[Dialer Defaults]
Baud = 460800
ISDN = 0
Stupid Mode = yes
New PPPD = yes
Modem Type = Analog Modem
Username = blank
Password = blank
Phone = *99#

[Dialer K3565]
Modem = /dev/ttyUSB3
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Baud = 9600

And thereafter, a simple

sudo wvdial K3565

does the trick! Funny why the same sequence didn’t seem to work a month back… but no matter, as long as it works now. Sometimes, it’s just easier to use a stick modem than the clunky Huawei E220.

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