I got an S5 today and tried to download Facebook and a few other apps. The status bar in Google Play just pulses and the app never completes the download. The same thing happened when I tried to download a PDF from a webpage.
I have cleared all my caches, rebooted the phone, removed and put back my Google account, and spent two hours toggling various Settings. I've got over 7 gigs of internal memory available. I have an Internet connection (I'm using it to post this). My phone still won't download anything. Does anyone know why?