Sorry, but Apple does not replace screens for the 3GS model. The iPhone is not supposed to be opened by the user, only an Authorized Apple Service Provider can do that.
If you are trying to fix the phone, Apple will not repair or replace your device anymore, even if you are willing to pay for that.
Apple will replace the phone with a working one if your are paying the Out-Of-Warranty-Service fee:
Out-of-warranty repair service
If your repair isn’t covered by Apple’s One Year Limited Warranty, AppleCare+, or AppleCare Protection Plan, your iPhone might be eligible for out-of-warranty service. For example, liquid damage isn’t covered by warranty but might be eligible for out-of-warranty service. Some damage isn’t eligible at all, for example if your device has been broken into multiple pieces. See Apple’s Repair Terms and Conditions for complete details.
Read Apple’s Repair Terms and Conditions
| Model |
Out-of-warranty service fee |
Battery service* |
| iPhone 6 Plus |
$329 |
$79
*available only if battery
fails Apple’s diagnostic test |
| iPhone 6 |
$299 |
| iPhone 5s, iPhone 5c, iPhone 5 |
$269 |
| iPhone 4s |
$199 |
iPhone 4, iPhone 3GS, iPhone 3G,
Original iPhone |
$149 |
Plus a $6.95 shipping fee, if required. Fees are in USD and exclude local tax. Pricing is for service through Apple. The final service fee we charge will be determined during testing and may be less than the service fee listed above. Pricing and terms vary for service through an Apple Authorized Service Provider.
copied from Service Answer Center - iPhone
