How to backup contacts from Asus Tablet 810

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 Asus Tablet 810. The whole process can be completed in few minutes.
You need an PC with an operating system Windows 8, 8.1 or 10 and application PhoneCopy for Windows 8. You can find it in "Windows Store" in "Productivity" section, or just follow this link.
Synchronize contacts from your account on PhoneCopy to Windows 8
Open PhoneCopy application and read initial instructions.

If you don't have an account on PhoneCopy.com, choose "Create new account". If you already have an account on PhoneCopy.com, choose "Use existing account".

When you create new account, you will see registration for. Fill all boxes and click to "Sign up".

If you already have an account, fill your login credentials. "Pick folder" to select where will be your contacts stored.

On next page start synchronization by pressing "Synchronize" button.

On first synchronization you will be asked for synchronization direction.

In case you don't have contact in selected source you will be noticed.

When you will add any contacts to selected directory you will see it synchronized to PhoneCopy after next sync.

You can see page with information about your synchronization.

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.
Some additional tips:
PhoneCopy also supports syncing notes, calendar events, and SMS messages on many devices, not just contacts. Check the PhoneCopy website to see the full list of supported data types for your phone.