How do I turn off my Nexus 5 from my computer without connecting it?

[AC Question]

how to turn off my nexus 5 from my computer without connecting it

nexus 5 . screen became black and no response

 

[B. Diddy]

Re: how to turn off my nexus 5 from my computer without connecting it

Welcome to Android Central! It sounds like it's off already--do you mean you want to turn it on using your computer? If the phone is dead, that probably won't help. Have you tried pressing and holding the power button for at least 10-15 seconds? Or booting into Recovery Mode? http://forums.androidcentral.com/nexus-5-rooting-roms-hacks/352008-guide-nexus-5-recovery.html