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A crack in the middle of the screen or a scratch?

I’ve got weird think. One say I wiped the screen with a soft microfiber. No problems was expected, but later I found I tiny but apparent line on the screen which add a kind of refraction (not sure) and a “rainbow” affect. Mostly noticeable it’s when you move, it’s really like a refraction.

So at first I thought it’s a scratch. But there are not one but many, the only difference - it’s mostly parallel to a pixel grid which could make it more apparent. But I start to fear - did you ever hear of such cracks in the middle of the screen appearing without a rough impact to it? Or it always breaks the screen if so?

To a nail it’s similar to a scratch, but a bit more prominent and sharp. If I press a bit with a finger screen stays as it was, not signs of damage. If I drip a drop of alcohol on the scratch it does not seem to disappear what’s worrying - in my logic it must hide being filled by a liquid. But if it does not…

The point is - can it be a start of a progressing problem which would ruin the screen or simply a minor issue?

Here are some photos I tried to take to show it:

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Those are fractures caused by pressure. Though you haven’t dropped it, the screen could crack from placing it in your back pocket, then putting your weight into it. Even placing it it inside a coat pocket Or purse could potentially fracture it if it knocked up against something more dense.

Placing it face down On top of a raised area will leverage a bend in the glass causing it to fracture, as well. Though anything could cause it, the crack is on the underside of the device.

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Anri sarà eternamente grato.
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