After looking at your usb-devices-2.txt, I confirm it's switched successfully and now it should work without any issue. That error stating `Error: getting the current configuration failed (error -1). Aborting.` seems to be from the latest changes in usb_modeswitch package but just ignore them.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/673459 Title: Support for BSNL 3G (Teracom USB devices) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs