How can I unlock an iPhone X locked by previous owner?

Hello~ Are you in contact with the previous owner? If not then the Activation Lock is doing its job and can’t be removed. We can’t help and neither will apple . See here by clicking on below…

The All Too Common SAD Reality of Buying a Used iPad/iPhone

~Katana-San~

According to Apple:

Remove Activation Lock on the device:

Follow the onscreen steps to enter the Apple Account and password you used to set up your device or your device passcode. If you don't remember your Apple Account, try to sign in with an email address or phone number that you regularly use for Apple services.

Learn how to find your Apple Account or reset your Apple Account password.

If your device is owned by a business or educational institution, please contact your IT department or manager.

Remove Activation Lock on the web if a device is offline:

1. Go to www.iCloud.com/find.
2. Sign in to your Apple Account.
3. Select the device that you want to remove from iCloud.
4. Click Remove This Device.

Start a support request:

If you need help removing Activation Lock and have proof of purchase documentation, you can start an Activation Lock support request.

Click ▶︎ iPhone User Guide. 📖

Good luck! 👋🏼😉