Lonsdor K518 User Password Input Error 5007 Solution

Problem:

I bought a second-hand Lonsdor K518 tool. I tried to register device. After inputting the user name and verification code. K518 said “User password input error 5007”

Solution:

Visit http://u.lonsdor.com/auth/login?lang=en

Hit Forgot password to retrieve password.

Then choose Registered user device activation to activate device again.