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Released in January of 2021. Identified by model numbers SM-G996B, SM-G996B/DS, SM-G996U, SM-G996U1, SM-G996W, SM-G996N and SM-G9960.

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Phone screen is black. I Have tried all restarts.

My phone went black screen overnight. It might have over heated. I have tried all the ways to restart and reboot. What else can be done to fix this issue?

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Presumably by “…. tried all restarts”., this includes a factory restore, is this correct?

If so, then as a DIY repair all you can do is to temporarily replace the display to check if the problem is on the systemboard or in the display.

Here’s a teardown video that shows how to replace the screen that may be of some help.

Search online for Samsung Galaxy S21 display assembly to get results for suppliers that suit you best.

Note: Ensure that you get the correct one for your phone. Check the model number of the phone to be sure as there are several S21 models and they may not all be the same as far as the display assembly is concerned.

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