OTA 7.1.2 update does not install say no command?

[AC Question]

My nexus 6p receive OTA 7.1.2 but when i install when my phone restart . Display say no command?.. it's does not install... Please help

 

[B. Diddy]

Welcome to Android Central! When you see the No Command screen, can you bring up the Recovery Menu by pressing and holding Power, then pressing Vol Up, then releasing both?