Does this occur with a certain wallpaper or does it appear anywhere on the screen? If it still displays white pixels on a different wallpaper than it might be a screen issue
@Sandraaa I know this must be frustrating. I recommend having the phone evaluated by a certified technician. You can take the phone to your local uBreakiFix and they would be able to tell you the issue with the display. They are also able to do screen repairs. You can use this link to find a location nearest to you. https://www.ubreakifix.com/samsung
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