my screen is broken ,so I'm taking it back to iPhone store. They will give me a new one. I need all my info back , so how do I transfer all my info i.e contacts, pictures etc from my phn to my computer.
You can also perform an iCloud backup and then restore that backup to your new device when it arrives. You can also 'sync' your data via iTunes. If you have photos, videos, music and important files on the device, be smart and offload them onto a computer or a cloud service like Dropbox or an external drive via your computer to be on the safe side.