When i push power button on my z1 i' ve got 3 options: power off, airplane and screenshot
And when i touch the first option the phone isn't reacting!!
So i can't turn my phone off!
The two other options are working well (airplane and screenshot)
What should i do?
Im with the last build 14.3.A.0.757
Before that i didn't got this issue
Thanks for the help