Here I put a complete details altogether that will be required for the newer modem that has inbuilt storage.

1. You will need  usb-modeswitch, usb-modeswitch-data, wvdail . To install issue the command ’sudo apt-get install usb-modeswitch usb-modeswitch-data wvdial”.

2. Check your Modem device - After 5 sec of inserting the modem device, issue the command ‘lsusb’
Here you will see your device as ‘Bus 002 Device 025: ID 12d1:140b Huawei Technologies Co., Ltd.’ or
‘Bus 002 Device 007: ID 12d1:1446 Huawei Technologies Co., Ltd.’

3. To avoid any mis-configuration, edit the file ‘/etc/usb_modeswitch.d/12d1\:1446′ at line TargetProductList=”1001,1406,140c,14ac” to  TargetProductList=”1001,1406,140c,14ac,140b”
Create a new file ‘/etc/usb_modeswitch.d/12d1\:140b:uMa=AnyDATA’, you can issue the command
sudo cp  “/etc/usb_modeswitch.d/12d1:1446″ “/etc/usb_modeswitch.d/12d1\:140b:uMa=AnyDATA”.
In the new file ‘/etc/usb_modeswitch.d/12d1\:140b:uMa=AnyDATA’, edit the line TargetProductList=”1001,1406,140c,14ac,140b” to TargetProductList=”140b”

4. Create the file ‘/etc/usb-modeswitch.conf’ as follow:

########################################################
# Huawei E270+  (HSPA+ modem)

DisableSwitching=0

DefaultVendor= 0×12d1
DefaultProduct=0×1446

TargetVendor=  0×12d1
TargetProductList=”1001,1406,140c,14ac,140b”
CheckSuccess=20

MessageContent=”55534243123456780000000000000011060000000000000000000000000000″

HuaweiMode=1

EnableLogging=0

5. Then run the command ’sudo usb_modeswitch -c /etc/usb_modeswitch.d/12d1:140b:uMa=AnyDATA’
If it says that ‘Waiting for original device to vanish …’, then after say 5 secs issue it again. Now, it will say

Original device is gone already, not checking
Searching for target devices …
……………
Mode switch succeeded. Bye.

6. Setting up wvdial. Create/edit the file /etc/wvdial.conf. The file should look like

[Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = Analog Modem
Baud = 115200
New PPPD = yes
Modem = /dev/ttyUSB0
ISDN = 0
Phone = #777
Password = internet
Username = internet

7. Checking modem : ls -l /dev/ttyU*, it will show something like

crw-rw—- 1 root dialout 188, 0 2011-01-28 16:07 /dev/ttyUSB0
crw-rw—- 1 root dialout 188, 1 2011-01-28 16:07 /dev/ttyUSB1
crw-rw—- 1 root dialout 188, 2 2011-01-28 16:07 /dev/ttyUSB2

8. Dial out - To connect issue the command sudo wvdial.

And you will be connected to internet using your TATA PHOTON+ on Kubuntu

Regards,
Anisur

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