How to backup contacts, calendar and tasks from Microsoft Lumia 640 XL Dual SIM LTE

In this tutorial, we show you how to use PhoneCopy.com to safely back up the contacts stored on your Microsoft Lumia 640 XL Dual SIM LTE. The service is free for personal use and works directly from your phone.

Download the PhoneCopy application from windowsphone.com. If you do not have a PhoneCopy account yet, press "Register new account" and create it by filling in "Registration" and then press "Sign up".

If you already have a PhoneCopy account, fill in your username and password. To export your contacts, press "Export to PhoneCopy.com". If you want to upload your merged contacts back to the same Windows Phone 8.1, it is necessary to delete all contacts there first.

Your backup is now complete. Visit the PhoneCopy website to confirm that all your contacts were transferred correctly and to explore the other features your account offers.