Why does my s5 fail during update

[AC Question]

Everytime I try to update to latest software version the update fails and after reboot it just says update interrupted. How can I fix this

 

[belodion]

Have you tried downloading both over wifi and mobile data?

 

[B. Diddy]

Welcome to Android Central! Is the phone rooted? Have you tried wiping the cache partition? http://support.t-mobile.com/docs/DOC-10404

You might try updating using Samsung Smart Switch as well.