While it is not possible to bypass the security of Apple's iCloud system, it is possible to reset the password on an iCloud account using a recovery email address or security questions. A different procedure is required if the iCloud account is protected via two-step verification.
Users who have registered a recovery email account with Apple can request an iCloud password reset from Apple's password recovery website Iforgot.apple.com. It is also possible to perform a password reset by answering security questions via this website as well. Security questions are the only option to change iCloud passwords for users who have not registered recovery email accounts.
Two-step verification is a method for performing password resets and other security procedures that is more secure than other methods, as it requires the person performing the reset to have a specific device available to receive a verification code from Apple to complete the process. Apple's IForgot page allows two-step verification and reset of passwords. After initiating the reset, it is necessary to enter the recovery key given by Apple during the two-step verification setup process, and then to specify a device to receive a second verification code such as a mobile phone. Entering the second code and new password completes the two-step verification and password reset process.
To bypass an iCloud activation lock on iOS 8 devices, use a custom DNS server. However, use this method with caution because it may not work on all devices and can cause glitches that may not be fixable.
The first step to bypass the lock is to enter the custom DNS server: 184.108.40.206. Then, click on Activation Help in the last activation screen, which redirects the phone to the custom website. This is a temporary bypass used to play games, watch YouTube and more.
To permanently bypass the lock, go to the phone's Applications in Settings and choose Crash Test 1. This application re-springs the device. Next, go to WiFi settings, click on i. On the HTTP Proxy area, select Manual. Here, add 30 emoji icons to the Server input and 8888 in the Port input. Press back, then next and slide to unlock. Press the language options for two to three minutes until redirected to the home screen.
The home screen allows access to the Phone, Newsstand and Facetime. If there was a previous owner, his contact information can be accessed through Facetime or the Phone applications. Ask the previous owner to have the device taken off the iCloud account. To restart the device while bypassing the lock from this point, hold Power and Home.