Reset Forgotten Restrictions Passcode (Updated For 2017) I know this question has been asked before, but none of the techniques shared work anymore.
You can still make use of iBackupBot to reset the restrictions passcode. Before you would just reset the restrictions passcode by inserting a line of code, however since that no longer works you have to find the encrypted version of the restrictions passcode and decrypt it using a website (http://ios7hash.derson.us/).

Here's the source and step-by-step procedure - https://www.techbout.com/reset-restrictions-passcode-iphone-ipad-ipod-8365/