Please help. Need advice.

Purchased a note 3 from eBay. Seller never disclosed the phone was rooted with safestrap. Not very happy about that. Phone is fine until I wanted to update to 4.4. It would not install. Was getting an error. It would download but failed to install.
So I Un rooted the phone through super user. Than tried to root again thorough Kinko and it failed to root several times. Why?
So now I'm stuck. Phone works fine but I would like to set it back to stock and take safestrap off so I can sell it because I bought another one.
Is there anyone that can give me step by step instructions on how to get this phone to factory settings like it did out of the box. Because now when it boots it goes thorough safestrap, it's not rooted and it won't let me root for some reason. Plus I can't upgrade to 4.4. What a mess. Can anyone help? Thanks

Posted via Android Central App

You can flash a stock ROM via Odin. That'll overwrite everything, including the internal storage.
You can find the stock firmware on sammobile.com or samsung-updates.com

So install Odin and go to Samsung website and flash stock firmware? That's it? When you say flash you mean install? Sorry just not very familiar with root terminology.

Posted via Android Central App

I can do this even though I'm not rooted?

Posted via Android Central App

Originally Posted by andonakis

I can do this even though I'm not rooted?

Posted via Android Central App

Yeah. Let me find an easy to follow video :)

Sent from my Galaxy S4 running SlimKat 4.4.2

Here: How to Unroot / Unbrick the Galaxy S4! - Complete…: http://youtu.be/6TMuVMbxi8c

Steps are the same for the Note 3

Sent from my Galaxy S4 running SlimKat 4.4.2

Thank you will try tonight when I get home.

Posted via Android Central App

Originally Posted by andonakis

Thank you will try tonight when I get home.

Posted via Android Central App

No problem :) Let me know how it goes