I just purchased a Galaxy S7 2 hours ago. After uploading some music to it and unplugging it from my laptop, the display went black and has not come back. (I'd run back to the store, but they're already closed.) Any ideas?
The closest document that I can find that's closest to your phone's issue is Screen or touch screen issues which will direct us doing a master reset with hardware keys Master reset: Samsung Galaxy S7 (G930T)
Let me know if it worked. Thanks!
Hold down the power for 30 seconds. Then release. Then hold down the power until it turns on.
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