To unlock the China tablet we will be using two hard reset tool. Generally the hard reset method does not work by pressing the buttons on the Chinese tablet.
Download the tools from http://mytabletguru.com/china-tablet-pattern-unlocking-software/
Tools we will be using here are
1. Android MultiTool 2. Android tool by GPGIndustries
Download and open any of the tool. In the appeared window select the option check device. If the drivers are installed then the tab will be detected.
Now select the option Wipe data. This will hard reset your Chinese tab and also delete all the user data. .