How much does it cost to replace the screen? Is there any way to do this cheaply?
Apple does not replace screens, they replace the entire device for $149 for the iPhone 4 and older models, $199 for the 4S, and $229 for the 5.
There is no way to source official Apple replacement parts. While you can probably have it done cheaper elsewhere, Apple will never again touch that device if you choose to go that route.
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