Comment 2 for bug 1330076

This is not an usb_modeswitch problem, it is a usb core or hub driver problem.
It causes a device connect/disconnect/connect/disconnect loop not only for the 3G modem but also for the Samsung Android device:

[ 7387.580579] usb 2-3: USB disconnect, device number 6
[ 7387.860066] usb 2-3: new high-speed USB device number 7 using ehci-pci
[ 7387.993516] usb 2-3: New USB device found, idVendor=04e8, idProduct=6860
[ 7387.993524] usb 2-3: New USB device strings: Mfr=2, Product=3, SerialNumber=4
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[14103.048295] usb 2-3: USB disconnect, device number 13
[14106.560123] usb 2-4: new high-speed USB device number 14 using ehci-pci
[14106.693349] usb 2-4: New USB device found, idVendor=04e8, idProduct=6860
[14106.693356] usb 2-4: New USB device strings: Mfr=2, Product=3, SerialNumber=4