New Dell vostro 5470 Stuck during initial setup

hi ,

I purchased a new dell vostro 5470 computer. During the initial setup is Stuck on the screen of  define new wireless network connection and did not respond to anything including attempts to shutdown (from button), I waited until the battery is empty and turned on again, the moment he came directly to Dell's Auto Repair.

It does not allow any system recovery.

What should i do now ??

thanks