How to restore system files?

[AC Question]

How to restore system files

My phone was rooted and I was trying to get a custom boot, but I accidently deleted something and no it won't shut off when I hit the button! - I have a Galaxy S3


-Max Carbret

 

[Rukbat]

Re: How to restore system files

Reflash the stock ROM - [Samsung] How to flash Stock ROM via ODIN.