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

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

How to update VVDI Key Tool

Xhorse VVDI key tool update manal:

check your update info on VVDI key tool

Connect the key tool to the laptop use a USB cable

free download vvdi key tool software to update

run update tool

click on Device info, then Update online

wait for approx. 10 minutes

VVDI key tool update successfully!

check the newest version on  vvdi key tool

Update: Now the newest version is  2.3.9