Comment 322 for bug 446146

I believe the "19d2" (ZTE) entry in /lib/udev/rules.d/61-option-modem-modeswitch.rules is interfering with the device's normal modeswitch and usb_storage recognition. That entry was added to udev incorrectly and has since been reverted when it was found to cause problems. If people ahve problems getting their ZTE device recognized, make sure you ahve that latest kernel update and also remove that line from /lib/udev/rules.d/61-option-modem-modeswitch.rules.