Nexus 5 not starting up or show charging, screen remain black, appear dead

A

AC Question

Nexus 5 was stuck in boot loop, wiped the cache. System asked for a restart, after clicking on restart phone stops charging or showing anything on screen. Phone appears dead.
 

B. Diddy

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Welcome to Android Central! What happens if you press and hold Power for about 15-20 seconds?
 

B. Diddy

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The bootloop might have been the precursor to a total failure of the motherboard, then. Not sure if there's anything you can do, short of replacing the motherboard.