Disable Find My iPhone and any Passcode or Touch ID set on your device.
All set? Lets begin!
Step 1: Download the all new PP Jailbreak for Mac OS X from here.
Step 2: Untick / uncheck PP checkbox found at the bottom left hand side.
Step 3: Click the big jailbreak button in the center. Once you do that, the tool will take you to another screen, here click on the button on the right (not left) to continue the jailbreak process.
Step 4: Jailbreak process will now begin. Wait and let it do its thing. This process can take about 1 to 2 minutes max. Once done, your device will reboot and you will find Cydia on your iPhone or iPad’s home screen.