My iphone 4s has been resetting for four hours?

I wanted to reset my iphone because it was jailbroken but I didn't want it to be anymore. Its not hooked up to my computer, I did it from the settings… Its been on a black screen with the loading sign in the middle of it for almost five hours now… Please help!

How much longer should it take? Or should it even take this long? If I'm suppose to be waiting this long, how much longer should I wait? If not, what should I do?

Sadly I think you might be waiting forever, jail-breaking is risky so maybe you shouldn't do it on your next phone.

Try google it also