How to backup contacts, calendar and tasks from Nokia Lumia 810

Whether you are switching phones or just want a safe copy of your data, PhoneCopy.com is a great solution. This guide covers how to back up contacts from your Nokia Lumia 810 quickly and easily.
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 7, it is necessary to delete all contacts there first.
Well done — your contacts are now securely backed up in the cloud. Open your PhoneCopy account in any browser to review your data or make changes at any time.
Some additional tips:
You can set PhoneCopy to sync automatically at regular intervals, so your backup always stays up to date without you having to remember to do it manually.