Open up iPhone 5s to turn it off My iPhone 5s screen is blacked out and I can't turn it off by using the screen and buttons.  How do I open the phone so I can remove the battery to turn it off?
Do not open your iPhone unless you are an experienced with phone repair person . Better take it to an Apple Store or any cellphone repair shop. Otherwise, use iFix guideline. 
https://www.ifixit.com/Device/iPhone_5s