I am facing difficulty in installing my USB modem in Ubuntu 13.10. Contrary to what many have suggested,it does not get detected automatically, nor does setting a new connection help. USB Device is listed in lsusb, but not under network manager or Devices, it is detected as a CD-ROM, what I understood from the web was that usb-modeswitch can be used to switch it to a USB device. Even 'Enable Mobile Broadband' option is not shown in network manager. What was interesting is when I start laptop with windows 7 and use the USB modem and after that restart with Ubuntu, both Enable Broadband and the mobile broadband connection can be seen. Sadly, internet connection could not be installed. I tried using USB-modeswitch command as suggested somewhere, but it does not seem to work. Following is the message. Take all parameters from the command line * usb_modeswitch: handle USB devices with multiple modes * Version 2.0.1 (C) Josua Dietze 2013 * Based on libusb1/libusbx ! PLEASE REPORT NEW CONFIGURATIONS ! DefaultVendor= 0x12d1 DefaultProduct= 0x1505 HuaweiMode=1 NeedResponse=0 InquireDevice enabled (default) Look for default devices ... found USB ID 8087:0020 found USB ID 1d6b:0002 found USB ID 0461:4db6 found USB ID 12d1:1505 vendor ID matched product ID matched found USB ID 138a:0007 found USB ID 03f0:231d found USB ID 8087:0020 found USB ID 1d6b:0002 Found devices in default mode (1) Access device 005 on bus 001 Get the current device configuration ... OK, got current device configuration (1) Use interface number 0 Use endpoints 0x08 (out) and 0x87 (in) Inquire device details; driver will be detached ... Looking for active driver ... OK, driver detached INQUIRY message failed (error -9) USB description data (for identification) ------------------------- Manufacturer: HUA?WEI TECHNOLOGIES Product: HUAWEI Mobile Serial No.: ??????????????????? ------------------------- Send old Huawei control message ... -> Run lsusb to note any changes. Bye! I am stuck with this problem for 4 days now, any help would be appreciated