CNN New Day September 18, 2013 10:48:00
First things first. how do we decide "a" if we need to do it and what do we need to know before we get the upgrade? >> obviously it will work on the new iphone 5s, 5s and the 5c coming out. if you have a 4, you might want to hold out and wait. a lot of times a new ios needs more power. if you don't have enough horsepower, you might end up with everything running slow. >> should you back up your device? >> absolutely. you should always back up everything. i installed it last night. and it took about an hour to get all my pictures back. i'm still having issues with my music. it started fresh. th...