Installing Huawei E1762 USB mobile broadband modem in Fedora Linux is not easy. The problem arises because Fedora Linux detected this E1762 as a storage device instead of a modem.
Plug the E1762 into the USB port, run lsusb -vvv | less command and scroll down to the Huawei Device Descriptor, check its “Interface Descriptor” sections, you’ll will see the entry of “bInterfaceClass” showing “Mass Storage”.
I tried out quite couple of ways to make it work, and finally success.
Step 1: How to switch from storage mode to modem mode?
You need the usb_modeswitch utility, to make it switch from storage to modem mode. Install usb_modeswitch using yum.
After usb_modeswitch is installed, vi the file /etc/usb_modeswitch.conf and add the following:
#####################
;DefaultVendor= 0x12d1
;DefaultProduct= 0×1446
MessageEndpoint = 0×01
MessageContent = “55534243000000000000000000000011060000000000000000000000000000″
#####################
Now, try to switch to the modem mode manually
Run the command: lsusb, to see the USB device has changed.
You can verify using lsusb -vvv | less command, the entry of “bInterfaceClass” should not show as Mass Storage now.
Step 2: Configure auto switch to modem mode
Now is to setup auto switching to modem mode whenever the Huawei E1762 modem is plug-in.
Add a udev rule that will trigger usb_modeswitch, open the file /etc/udev/rules.d/70-persistent-cd.rules and append the following lines:
Reload the internal state of the running udev daemon
Lastly, use NetworkManager Applet to add new Mobile Broadband connection.
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