Since you are not rooted download Kies 3. It's a Samsung utility. Download it and install it on your computer and that should get you on the latest and greatest. I did it on my windows pc with both updates. Current being MJE.
Then if you want to root later you can with Kingo app.

---------- Post added at 09:38 AM ---------- Previous post was at 09:36 AM ----------

Originally Posted by LeftyGR View Post
When you plug your phone into a computer, a folder pops up with some folders and some files. One of the files is a program from Verizon. I do not recall the name at the moment. But if you double click on it, it will install a program on your computer that will help you install firmware through your computer. Try updating with that. Just follow the prompts. And let us know if updates you to the current firmware, or if you're still having problems.

There's also Odin if you are familiar with that