Is there a way to recover a pin i forgot on my iPhone 4s
I just got it yesterday and one of my friends put a passcode on it to 'troll'
And he claims he 'forgot'

yeah sure i say
So can i try to troll the troller and get back my pin? or do i have to reinstall or get stuff off my iphone like using iexplorer or ifunbox. I personally don't want to go all the way to jailbreaking cos im a noob
thank you for reading this
BTW IM SORRY I PUT IT IN THE IOS FORUM( I need a way to delete this post) D:
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*UPDATE*
that 'troller' decided to do something with find my iphone on my iphone
So could i access the settings through the lock screen?