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

VVDI Key Tool EU version 2.2.0 software download and update

Xhorse VVDI Key Tool EU version software is updated to ver. 2.2.0

the newest sw version: 2.2.0

VDI Key Tool EU Version V2.2.0 Update Log:

Attention please! this update is for VVDI Key Tool EU Version  only.  For  VVDI Key Tool US, ME and other versions, please wait for update patiently.