why is lumia 920 locking up

[WPCentral Question]

Lumina 920 locked up and will not power off

 

[xandros9]

First thing to do is a soft reset.

Press and hold the power and volume down keys for 10-15 seconds, or until the phone vibrates.

 

[RumoredNow]

Soft Reset is like snake oil that works.

It fixes many a glitch.