Have you forgotten your iPhone passcode to change the Restrictions Settings? If your device has been Jailbroken, here is one method for removing the passcode settings and starting over again.
1. Your device must be jail broken.
2. You must beable to ssh into the device.
– Navigate via SSH to /var/mobile/library/preferences/
– Delete “com.apple.springboard.plist”
– On your iPhone, return to Settings > General > Restrictions
– You should now be able to set a new passcode