Need help with Nokia 5200 it says phone restricted?

The restriction code on a mobile phone is the code you need to unlock it from it's original network, making the phone usable across all networks. This code is usually supplied by your network provider, and they typically charge a fee for supplying the unlock code. You can, of course, go to Theunlockspot.com who will usually do the unlocking for you more cheaply than your network provider will. Hope this helps