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I just finished replacing the charging port and screen in my iPhone 7 Plus. I finished my repair and pushed the power button to verify the repair and it brought up the charging screen because my phone was completely dead I waited I few minutes and now the phone won’t do anything or even the charging screen plz help!!!!! Call 7656987806

Just double check you have connected the two display connectors properly back to the logic board when doing the screen replacement, as this will cause your screen to go blank if it is not connected properly.