How do I reboot Z1S phone? Phone frozen

[jana_liu]

I was in the middle of sending a text, phone has frozen screen and non responsive to touch or power button on right side.  I read forums and searched online for how to hard boot but all reference the Z1 and to remove the door to the SIM card to press the OFF button there with a pen tip.  Doesn't appear to exist on the Z1S model C6916.

this is help for the Z1 only 

http://talk.sonymobile.com/t5/Xperia-Z1-Z1s/Xperia-Z1-Physical-Hard-Reset-Button-FOUND/td-p/369607

Spoiler

[_alexdon_ · Accepted solution]

Power button and volume up at the same time,the device should vibrate 3 times.

[jana_liu]

Worked, and simple.  Wonder why I couldn't find this solution myself. 

No need to remove SIM door. 

[_alexdon_]

:smileysmileythumbsup:

Don't worry,there is time to learn.