3G dongle getting detected as USB disk on Fedora 18

[Soham Chakraborty]

Afternoon folks,

I know that Fedora 18 is kinda obsolete but for a number of reasons, I have
to stick to it for the time being. However, I am quite sure that this
problem/behavior isn't restricted to F18. But since I am using that, ought
to say that.

So, here is the problem.

I have a ZTE K3800 dongle which I use for wireless/3G connection, provided
by Vodafone. When I plugin the device, it prompts to connect and works.
Problem is, as soon as I connect, systemd sends a signal 15 to
network-manager and the applet disappears from system tray. Therefore, if I
try to configure VPN, I find no option. Note that, I am only trying to
configure from the nm-applet.

lsusb shows me this

Bus 001 Device 005: ID 19d2:0117 ZTE WCDMA Technologies MSM
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x19d2 ZTE WCDMA Technologies MSM
  idProduct          0x0117
  bcdDevice            0.00
  iManufacturer           3 ZTE,Incorporated
  iProduct                2 ZTE WCDMA Technologies MSM
  iSerial                 4 MF6560ZTED010000

Now, when I insert the device, I get this.

Jan  1 18:50:52 blah kernel: [22130.542240] usb 1-1.2: new high-speed USB
device number 8 using ehci-pci
Jan  1 18:50:52 blah kernel: [22130.564586] nouveau W[
PFIFO][0000:01:00.0] INTR 0x00000100: 0x00000011
Jan  1 18:50:52 blah kernel: [22130.629979] usb 1-1.2: New USB device
found, idVendor=19d2, idProduct=0154
Jan  1 18:50:52 blah kernel: [22130.629986] usb 1-1.2: New USB device
strings: Mfr=3, Product=2, SerialNumber=4
Jan  1 18:50:52 blah kernel: [22130.629990] usb 1-1.2: Product: ZTE WCDMA
Technologies MSM
Jan  1 18:50:52 blah kernel: [22130.629994] usb 1-1.2: Manufacturer:
ZTE,Incorporated
Jan  1 18:50:52 blah kernel: [22130.629997] usb 1-1.2: SerialNumber:
MF6560ZTED010000
Jan  1 18:50:52 blah kernel: [22130.631836] usb-storage 1-1.2:1.0: USB Mass
Storage device detected
Jan  1 18:50:52 blah kernel: [22130.631937] scsi10 : usb-storage 1-1.2:1.0
Jan  1 18:50:52 blah mtp-probe[12945]: checking bus 1, device 8:
"/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2"
Jan  1 18:50:52 blah mtp-probe[12945]: bus: 1, device: 8 was not an MTP
device
Jan  1 18:50:52 blah kernel: [22130.689135] nouveau W[
PFIFO][0000:01:00.0] INTR 0x00000100: 0x00000011
Jan  1 18:50:52 blah kernel: [22130.813677] nouveau W[
PFIFO][0000:01:00.0] INTR 0x00000100: 0x00000011
Jan  1 18:50:53 blah kernel: [22130.938233] nouveau W[
PFIFO][0000:01:00.0] INTR 0x00000100: 0x00000011
Jan  1 18:50:53 blah kernel: [22131.062770] nouveau W[
PFIFO][0000:01:00.0] INTR 0x00000100: 0x00000011
Jan  1 18:50:53 blah logger: usb_modeswitch: using overriding config file
/etc/usb_modeswitch.d/19d2:0154; make sure this is intended
Jan  1 18:50:53 blah logger: usb_modeswitch: please report any new or
corrected settings; otherwise, check for outdated files
Jan  1 18:50:53 blah kernel: [22131.187307] nouveau W[
PFIFO][0000:01:00.0] INTR 0x00000100: 0x00000011
Jan  1 18:50:53 blah kernel: [22131.311846] nouveau W[
PFIFO][0000:01:00.0] INTR 0x00000100: 0x00000011
Jan  1 18:50:53 blah usb_modeswitch: switching device 19d2:0154 on 001/008

Note that it switches to 19d2:0154 which is

# cat /etc/usb_modeswitch.d/19d2\:0154
# ZTE MF190 (Variant) and others

TargetVendor=  0x19d2
TargetProductList="0017,0117"

MessageContent="5553424312345678000000000000061e000000000000000000000000000000"
MessageContent2="5553424312345679000000000000061b000000020000000000000000000000"
NeedResponse=1

I checked in /lib/udev/rules.d/ to see whether I can find anything but not
much success.

BTW, this article gives some clues but I don't have the configPack.tar.gz
file to clone.
http://simko.home.cern.ch/simko/usb-3g-modem.html


Any help will be appreciated. Also, if any other information is required,
do shout and I will provide.

Thanks,
Soham
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