Iphone 4 screen white, then black

Hello, I'm a new user on these boards. My iphone 4 had the screen replaced a few weeks ago, and it's been fine. today, the screen turned white, then got grainy lines in it and turned black. When I plugged it into my PC it shows up in iTunes, but I can see nothing on the screen. Any help is appreciated. Thanks.

Hi dipasqu,
Based on your description of the issue and the recent repair, you may need to have your iPhone serviced again. You may find the following page helpful:
Service Answer Center - iPhone
http://support.apple.com/kb/index?page=servicefaq&geo=United_States&product=ipho ne
Regards,
- Brenden

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