How to backup contacts, calendar and tasks from Microsoft Lumia 640
PhoneCopy.com is a web service which is free for personal purposes (with few limitations). This tutorial will show you how to backup your data from Microsoft Lumia 640. The whole process can be completed in few minutes.
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.
Once everything is done, check your data on the web. Login to PhoneCopy webpage and you will see brief review of all data transferred from your device. With another mouse click, you can review the change of each particular item.
Some additional tips:
Just as a reminder, the contacts are transferred via your mobile phone service provider, so you need to have data plan activated for the service to work. If you don't have a special data scheme, your carrier will charge you additional fees.