Power and turn( -)volume

All this does for me is turn off my device. Anyone else?

you have to hold it for a full second

Mine isn't doing it... It either gives me the volume slide bar or the restart menu?

Ok so its the down volume key and the lock button.i just did it on mine.

I believe its the home and volume button.i will double check when i get home.

Hold down the power button and the volume down button at the same time