What do I do if there is a picture of a power cord and iTunes icon on my iPhone screen?

[iMore Question]

what do i do if there is a picture of power cord and Itunes icon on my Iphone sceen?

I have a Apple IPhone 4s and I cant get calls or make calls. how long should I wait if it
is updating? I cant turn phone off even, nothing works. please help

 

[Bigeric23]

Re: what do i do if there is a picture of power cord and Itunes icon on my Iphone sceen?

Have you tried connecting the device to iTunes?