iPhone 4 Pixel Checker?

[linsam]

Hi All!

I am just wondering if anyone knows how to test for dead pixels on the iPhone 4. I have some sort of speck under my glass and would love to run a pixel checker. It is pretty much in the center of the screen. I will keep an eye on it to see if it gets worse. In the meantime, thanks for your help.

 

[0wen]

You may have some dust under the screen as I have a few white specs of dust under my screen and what looks like a small S shaped hair or scratch that was all visible as soon as I pulled of the protective cover. I have just been too busy with work to go switch out the phone.