I have a galaxy S2x with Koodo mobile in Canada, model SGH-T989D. Does anyone know if Kies works via USB on this phone, because after many tries I can't get Kies to see the phone using the USB cable. Thus without Kies, how do I back up my apps and settings? And how do I do the 4.1 Android update? Kies Air works fine, as does connection of the phone to the computer using Windows Explorer (Win7 64 bit), but I don't think these methods can be used for Android update or backup of settings. Kies does not detect my phone when it is connected by USB cable.