Depending on how long it’s been since you synced your iPhone, you may need to sync with a new computer to get the new iOS 5 software update.
If you have an old computer, the process is a little easier because you can transfer your music files with an external hard drive.
If the only copy of your music files is on your iPhone or iPad, you will need to use a special tool to manually move them to your new computer.
This guide is also helpful if you’re migrating from a Mac to a PC and want to change which computer your iPhone syncs to wirelessly.
You can manually move some of your files and information to a new Mac or PC, but the easiest way to start using your iPhone or iPad with a new computer is to get an app like iExplorer or PhoneView.
Before syncing with iTunes on your new computer, make sure you use one of these tools and follow the steps outlined below.
From iPhone to New Mac
If you have or are migrating to a Mac, Phone View is your best bet. This app is $19.99 with a free 7-day demo that lets you try things out.
With this app, you can copy all your important files from your iPhone to your new Mac. PhoneView backs up the following items to your Mac;
From iPhone to New PC
On Windows Side, iExplorer it is a great option. When you plug in your iPhone, iPhone Explorer gives you access to most of your important files, such as;
Backup Contacts on iPhone
If you only want to backup your contacts from your iPhone and restore them to a new iPhone, you can use it. iDrive Litea free iPhone app.
Besides using these tools, you need to make sure you back up your information.
You can follow the instructions in this video to transfer apps and others purchased from your iPhone to your new computer.
While you can download your apps again for free, you need to make sure you back up your app data. Your app data is where you have your real data like all your Angry Bird scores and levels.