How to unjailbreak iPhone 4S?

I don't care if I lose anything or everything. Verizon iPhone 4S using software version 6.1 right now. Jailbroken with evasi0n jailbreak.

I'm having trouble restoring through iTunes. Is there a certain/minimum version of iTunes required? Do I need to back up in order to restore? While restoring, the phone gets stuck with the never-ending loading circle. I have not yet tried restoring with doing the "back-up" first.

No you can't… Evasion jailbreak ruins iphones.
sell it for parts and buy a new one.

  • Would I still get my warranty if I unjailbreak my iphone 5? I heard if you have an jailbroken iPhone the company won't fix it phone, if anything would happen to it.
  • Why can't I unjailbreak my iphone 5? I want to update to 6.1.2 but I'm jail broken with evasion and when I connect if go my computer to restore it takes a long time to load and says that it's up to day or something and when I check my software update on the iPhone it never loads and when I tried resetting it it never finishes what can I do? How do I unjailbreak when nothing's working
  • What will I lose if I unjailbreak my iPhone 4? So I have had my iPhone jailbroken for a while and now i want to update to IOS6 and just simplify my phone, how do i unjailbreak it and what will I lose if I do, I just don't want to lose message history and photos.
  • Should I unjailbreak my iPhone 4? Should I? It's slowing down and i don't want to mess it up anymore. Should I unjailbreak it?