Now that iOS 8 and iPhone 6 are out, it is the right time to think about backing-up your iPhone data. Upgrading to iOS 8 from a a previous version of iOS will re-instate the iPhone or iPad. Follow this guide to backup iPhone data before updating to the new iOS or before migrating to the iPhone 6.
Before upgrading to iOS 8 backup iPhone data
There are two methods of iPhone backup Apple provides: iCloud and iTunes. You should use both in order to be sure that if one fails, the other kicks in. In addition, I'd recommend using a third tool to make a full iOS backup of your iPhone, iPad or iPod Touch on your PC via using a free computer program called CopyTrans Shelbee.
1. Download CopyTrans Shelbee on your PC from the following page
2. Start the program and connect the iPhone. Click on "Backup"
3. Read more...