Question on updating

BigCiX

Zealot
Gold
Jul 11, 2008
1,445
5
38
Bakersfield, CA
#1
I want to update my wife's iPhone 5 but when I plug it in it states that the iPhone was synced to another computer (which is was but the hard drive failed). If I click on erase and sync will it backup her photo, music , etc first or will she lose everything?