It won't turn on

I've got a Samsung J5 I'm trying to switch on but it's just not turning on. The battery charges up to the point the handset feels warm but it just won't turn the handset on. I've tried the battery in another J5 from a friend so there's nothing wrong with the battery. Any help would be appreciated! Thanks

Written by: Dubsndimes29
Source: http://bit.ly/2Iz8mxp