Jailbreaking and unlocking an iCloud locked iPhone are not the same thing. Jailbreaking allows you to have access to hidden features, or install unauthorized apps. Types of iPhone lock: Passcode lock. Prevents unauthorized access to your iPhone without providing the 4 or 6 digit passcode. Carrier, SIM, Network, or Factory Lock. Prevents switching carriers or using a different SIM card. iCloud Activation Lock. Removing, or bypassing iCloud Activation Lock allows you to get around the Activation Lock screen when setting up an iPhone.