

Here is a tip for you: If the iPhone’s iOS system is iOS 11 or later, you can protect your Apple ID via two-factor authentication, or bypass the iCloud Activation Lock via the device’s passcode (Choose "Unlock with Passcode" and click on "Use Device Passcode").

To check whether your iPhone is iCloud locked, you can look for the iCloud Activation Lock screen.

Activation Lock is automatically enabled when you enable "Find My iPhone". This feature is used to prevent others from using your iPhone, iPad, iPod touch, or Apple Watch if the device is lost or stolen. ICloud Lock is Apple's protection system. Have you ever heard about iCloud Activation Lock? If you are a new iPhone user and it's the 1st time for you to get a new purchased iPhone, iPad or iPod Touch, you may want to know what iCloud Activation Lock is.
