How to backup contacts, calendar and tasks from HTC Radar 4G

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 HTC Radar 4G. 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 7, it is necessary to delete all contacts there first.
With your contacts safely backed up, you can rest easy knowing your data is secure. Log into your PhoneCopy account at any time to view, edit, or restore your contacts.
Some additional tips:
It is a good idea to run a sync before any major change, such as a factory reset or an OS update. That way, your contacts are always protected before anything unexpected happens.