How can I disable the iPhone Restrictions code? [duplicate]
There is no way to remove the Restrictions passcode without restoring the device in iTunes or from the device. However, you can save your data by backing it up to iCloud or iTunes and restoring all content to the device after it has been restored.
Per Apple's support document:
If you lose or forget your Restrictions passcode, you'll need to erase your device and then set it up as a new device to remove the passcode. Restoring the device won't remove the passcode.