I backed up my Samsung Galaxy S2 on Kies before updating to Ice Cream Sandwich. After the upgrade I tried to restore, but the restore fails each time I try.
I had the same problem; this is what worked for me:
Disable usb debugging in settings>applications>development and select samsung kies in settings>wireless and network>usb settings and try connecting the device again
protected by Community♦ Aug 5 '12 at 22:44
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