How do I get my normal Windows start screen back on my Lumia 720 from the Cortana screen?

[Windows Central Question]

i need my normal windows start screen back on my lumia 720 from the cortana screen

am using cortana . have tried several time to switch back to my windows phone start screen but to no avail. Advice

 

[Asik15]

Re: i need my normal windows start screen back on my lumia 720 from the cortana screen

am using cortana . have tried several time to switch back to my windows phone start screen but to no avail. Advice

just restart your device by long pressing the power button and slide down the screen !!!!

 

[alex amentor]

Re: i need my normal windows start screen back on my lumia 720 from the cortana screen

Thank bro.
But then am in trouble because my volume button and power button are not working. What should i do to switch from cortana to my windows phone start screen?