6th generation Android smartphone designed by Google and manufactured by LG. Model LG-H790. Released October 2015.

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Display goes black when I call

Recently I changed my display myself and after that display goes black when I try to call. But, if I plug my headphone, display is normal.

I am not sure which part do I need to fix

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Weird that the display doesn't have the black screen issue when headphone jack is plugged in.

Anyway the issue is something is either blocking the proximity sensor at the top of the screen or it's not aligned properly.

Usually adhesive, dust or misalignment of proximity sensor causes this issue.

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