How do i turn my galaxy s5 on?

[AC Question]

The power button stopped working, so I took out the battery in hopes it would help and it won't work.

 

[belodion]

You could try cleaning the button with alcohol on a cotton bud, and/or taking it for repairer attention.

 

[B. Diddy]

Welcome to Android Central! Also, have you tried a new or different battery, in case yours has failed?