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

PhoneCopy.com is a reliable way to keep your contacts safe. Follow this guide to learn how to back up your Microsoft Lumia 640 LTE DUAL SIM data quickly and without any technical knowledge.

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 contacts are now safely stored in your PhoneCopy account. You can view and manage them online at any time, even if your phone is lost, damaged, or simply out of reach.