Just purchased a used iphone 4S & would like to sync it with my iphone 4 - to transfer my apps, data etc. from the 4 to the 4S &, if possible, keep some of the apps that are on the newer phone. So far, I have not been able to do this with icloud or itunes. The previous owner's Apple ID is still on the 4S. Could someone help me with this problem? Many thanks!