Hi, folks!
I know what you're gonna say: "this guy didn't searched before" or "read the manuals, loser". I said something like that in other forum just minutes ago , but please be tolerant.

Here comes... What is the result of selecting Settings>>Reset>>Erase all content and Settings and Settings>>Reset>>Reset all settings

This looks self-explanatory, but I mean it in the sense of third party apps, hack activation and jailbreaking.

Regards!!!

Erase all content will do exactly that, however it will not erase appliances.

Reset settings will reset your settings.