Now the screen of my iphone 4 was accidentally crushed, but my warranty has already expired. My friend suggested me to get an OEM iphone screen like this one:xxxxxxxxxWholesale Replacement White Digitizer Touch Screen and LCD Display Assembly for iPhone 4G 4th(IPHONE-4-932) - iPhone 4 Replacement Parts on TVC-Mall.com[/URL] to replace it, which would be cheaper. But I'm not quite a craftsman. Any better advice here? Or did someone do it before?