Huawei E3131 Modem on Ubuntu 10.04

Hello, am using an E3131 Huawei usb modem. I installed the mod-switch as advised. I ran
$ lsusb | grep 12d1
I get the output below
Bus 002 Device 005: ID 12d1:14fe Huawei Technologies Co., Ltd.

here is the list files in
$ ls /etc/udev/rules.d/
15-huawei-155x.rules
31-huawei-e3131.rules

Content of 15-huawei-155x.rules
———————————————————————————————————-
SUBSYSTEM==”usb”,
ATTRS{idProduct}==”14fe”,
ATTRS{idVendor}==”12d1″,
RUN+=”/lib/udev/modem-modeswitch –vendor 0x$attr{idVendor} –product 0x$attr{idProduct} –type option-zerocd”
———————————————————————————————————

Content of 31-huawei-e3131.rules
—————————————————————————
ACTION!=”add”, GOTO=”huawei_zerocd_end”

SUBSYSTEM==”usb”, ATTR{bDeviceClass}!=”ff” ,ENV{DEVTYPE}==”usb_device”, GOTO=”huawei_zerocd_disable”
SUBSYSTEM==”scsi”, ENV{DEVTYPE}==”scsi_device”, GOTO=”huawei_zerocd_disable”
GOTO=”huawei_zerocd_end”

LABEL=”huawei_zerocd_disable”
ATTRS{idVendor}==”12d1″, ATTRS{idProduct}==”14fe″, RUN+=”modem-modeswitch -v 0x%s{idVendor} -p 0x%s{idProduct} -t option-zerocd”

LABEL=”huawei_zerocd_end”
—————————————————————————————————

I started the udev service.
Unfortunately, the e3131 modem does not perform. I made configurations for the APN, but no change whatsoever.

Would you possibly correct me?
Thanking you, Simon.

Reference: http://franklinchua.wordpress.com/2010/05/03/huawei-e1550-on-ubuntu-10-04-lucid-lynx/#comment-344