How to solve VVDI Key Tool NAN ERROR

Problem with VVDI Key Tool:

I want update but software show error. Key Tool not work and show NAND ERROR. Help please

Tech support from http://www.xhorsetool.com/:

Do clearing and then update to version 2.2.2.

Note that VVDI Keytool version 2.3 is for China market.

There is Chinese available in version 2.3