screen's flashing when turn off screen

Question

Samsung Galaxy J7

This is the device page for the Samsung Galaxy J7. The OS that comes stock to the device is Android OS v5.1.

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When I turn off the phone's screen, the page starts flashing shortly, what to do with this problem?

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Alex Sander 声誉积分: 35.8千 228 97 63 · Answer 1 · 2018-02-12T00:14:52-07:00

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From what you have written I concluded that your display is broken and you need to replace it, here is some help:

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pedro sano @lotiges 声誉积分: 65 3 1 · Answer 2 · 2017-10-30T23:20:46-07:00

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factory restore, backing up your data for sure. if not might be a hardware problem.

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