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Released by Samsung in March 2016. Model SM-G930V.

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Black smudge in the LCD a day after glass replacement

Yesterday I finished the glass replacement of a G930 and everything worked fine. Today, after I installed the assembly back onto its frame it turned on with a huge black smudge. The alignment was done with a universal mold and I used LOCA. Connectors are clean, flex looks fine.

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What is there to do?

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After some research I have found out that the black smudge is actually all the dead pixels. What "killed" them is the LCD being put under tension, not pressure. A drop can cause this. This only happens to AMOLEDs. Hope I helped someone.

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Ciprian R will be eternally grateful.
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