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bubble in the screen after repair

I just replaced the glass on a s3 and now have a tiny dot in the center of the screen .I have done many screens as well as digitizers on all kinds of android and iphones this is a first for me and am wondering what went wrong.The digitizer did not appear to have any defects and it was done in a dust free box so I don't think its dust. Its about the size of a pin head and the screen works fine.

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Has this ever happened to anyone else.It almost looks like water under the screen

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my phone has this to after i get screen fixed has little bubble in middle you can move around and looks like water how do i fix this to

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Maybe the backlight is damaged?

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THERE IS NOT A BACKLIGHT ON A SAMSUNG AMOLED DISPLAY.

For that matter, its not an LCD, stop calling it one. Familiarize yourself on the technology of the devices you're working on and offering advice about. Knowing how and why a display works will go a long way toward finding real solutions instead of searching around in the dark like a blind squirrel.

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Most likely you didn't properly repaired the device the correct way.

That usually happens when you replace the glass and don't bond it with oca (optical clear adhesive) or loca (liquid optical clear adhesive). I've use to do this, when I first started repairing phones. Now I use loca to bond them, making every repair look just coming out the manufacturer as possible.

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Will adding heat after the install help

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Finally took the screen off and reapplied the sealant and reseated to correct the issue. A small doubling of the tape caused the issue

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sounds like you answered your own question

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