My Android phone blinks the Samsung logo but won't start up

drakem

Estimable
Jun 7, 2015
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4,510
I closed my phone but didn't turn it off entirely last night. This morning I saw that the screen was black (normal) but the Samsung logo was blinking on and off. When I tried to start it nothing changed. I pulled out the battery and then put it back in but no change. When I plugged it in I saw that the battery is 3/4 charged. I've tried holding down both the volume and power button but still no change. Help !