How to Find Dead Pixels on Your Phone's Screen
1. Black positioning detection, you can actually observe whether there are black spots on the screen when purchasing. If the phone is excited or away, a logo design or animation with a white track record will appear. smart phone news , Before showing the logo or animation you see a full screen presentation with a true white background and you can visually see if there are true black areas
2. Bring your own storage 176×208 pixel full-screen black historical pictures in advance. But since the vibrant locations are clearer, as long as you can see a show with a dark background, you can roughly see the problem, for example: start your camera work, protect the digital camera with your finger, take some dark pictures, and use the phone's built-in photo search.
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