And make sure you do not lose your data or setup. I upgraded to Android (yep Android) from the iPhone 6. So I decided to exchange phones with the missus and take the iPhone 5S from her and setup her iPhone 5S on the 6. First up. - two laptops - Downloaded and installed latest iTunes on both. Did a backup to iTunes. You can see it Syncing in this screen shot. The system asked me for my pword and authorized the PC to back up all my apps and their data. As you can see, apps were being backed up to the PC. Once backup was complete, I did a full erase on the iPhone from Settings - General - Reset - Erase all Content and settings. After that completed and the phone was refreshed (to factory settings), swapped out the SIMs and started the log in process. This all that I did - Erase iPhone - Give password to itunes account etc. After it resets and boots up to Hello screen, just went thru the menu till I reached here - Selected Restore from itunes backup Connected it to iTunes - 15 minutes later, both phones have been switched and nearly all settings have been maintained! So here's a handy guide if you need to switch iPhones or exchange phones with a loved one! Cheers.