The Activation Lock, as one of the iCloud features, is subject to iCloud's "Find My iPhone" feature and is designed to prevent others from using your iPhone, iPad, iPod touch or Apple Watch if it has ever lost or stolen. Once your iDevice get lost or stolen, you can turn on Find My iPhone feature on iCloud and the Activation Lock will be enabled automatically. Thus your lost iDevice will be locked with your own Apple ID account, which means only using the original Apple ID and password can access your device.
However, for people who unfortunately buy a lost or stolen iOS device on eBay or other second-hand marketplace, this could be a trouble for they have bought an unused device. If you are also troubled by the iCloud locked device, why not learn the following methods to bypass iCloud Activation Lock and access to your iOS device? Besides, if you find a lost iOS device and want to return it to the owner, these methods can also help you to contact the owner.
If you have bought a iPhone and find that it needs the original Apple ID and passcode to activate the device, it may be a stolen iPhone. In order to access the device or contact the owner if you want, you can try the tips as below, but it is only a temporary solution to bypass the iCloud Activation Lock.
Step 1. Tap the Home button and go to "Settings" > "WLAN" on your iPhone. On the Wi-Fi network list, tap the "i" icon next to the Wi-Fi network that you want to connect to.
Step 2. Then you will be brought to a new window with the network settings where you can find the "DNS" option. Remove the existing DNS, and enter the new DNS according to your location:
DNS for USA/North America users is 220.127.116.11
DNS for Europe users is 18.104.22.168
DNS for Asia users is 22.214.171.124
DNS for users in other areas is 126.96.36.199
Step 3. After entering the new DNS, please tap "Back" button and click "Activation Help" option. Then you will receive a message stating "You have successfully connected to my Server", which means your device has been activated and now you are able to access most of the major functions of the device like Settings.
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You might have noticed that the above method is only a temporary solution, so if you want to return the iOS device that you have found, you can skip the following steps; but if you want to use the device, you need to complete the above operations to bypass the iCloud Activation Lock temporary and then continue the steps in the following part. And this will help you to bypass the iCloud Activation Lock forever.
Step 1. Switch to "Menu"> "Applications"> "Crash", then the device will be restarted.
Step 2. After the iDevice reboot, choose "Language and Country" option, tap "Home" button and then "More Wi-Fi Settings" option.
Step 3. Then tap the "i" icon besides to the Wi-Fi network you want to connect to. In Settings page, scroll down to "Menu" under "HTTP Proxy" section.
Step 4. Then completely remove the given address bar and tap "Globe" on the keyboard. In "Port" section, type 15 to 30 random characters and enter "b". Then tap "Back" option and select "Next" option.
Step 5. Then the unlock screen and languages option screen will show up repeatedly. Then keep to slide to unlock and tap the desired languages option till the Home screen appears on the device.
Then you can access most of functions in the iOS device now. However, if you want to use some apps like FaceTime and Phone, you have to start over again. So even though you can bypass the iCloud Activation Lock, you can not use the device normally.