From PGI
If your iPhone remains "unlocked," that means that you purchased it without taking a service contract out of a cellular telephone assistance provider. This means that you will never be able to use the 3G or EDGE network connections to download content away from iTunes using the gadget. You can, all the same, still utilize the iPhone's built inside WiFi wireless networking capacities to download these kinds of content even if you don't actually have any one sort of any service plan in location.
Difficulty: Effortless
Instructions
1 Change on your iPhone.
2 Tap "Settings."
3 Tap "WiFi." Tap the name regarding some wireless network you'd for example to connect to. If that is network requires a password for persons to entry it, you can use the iPhone's virtual keyboard to type that is password into the box now. If no like password is required you will simply be automatically connected.
5 Tap the "iTunes" button. This will take up the iPhone's built-inside iTunes media store application. You can nowadays search for the content you'd like to download by kind (audio, video, audio book, etc)., artist name, genre or some additional qualifier you have in mind.
6 Tap the "Buy Today" key and enter your iTunes store consumer name and key. If the piece cost money, your account will be charged. If the piece was free, it will be immediately downloaded to your unlocked Apple iPhone.
Tips & Warnings
References
Apple: iPhone
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