How do I synchronise iphone6 with backup of iphone5 and iphone5 with iphone6 backup due to a phone swop with only one mac with itunes for backups?
I have an iPhone5 and my boyfriend an iPhone6, both are synchronized via my mac book and iTunes. So both backups on my mac book. We now wanna swop the phones and synchronize the iphone6 with the data of the iphone5 and the other way around. What is the best way to do that? Is there anything I have to make sure of? Must I do all the software updates before the swop? I am very nervous and don’t wanna loose any data from both of us. Please help.