No official "username and password free" version of the HMD Device Kit exists. The tool is strictly designed for and requires:

If you are an individual user rather than a service professional, you can use these official methods to manage or reset your device: HMD DEVICE KIT USERNAME AND PASSWORD

A monthly and a unique OTP (One-Time Password) for every login. Why you might be looking for it

: Personal Gmail or Outlook accounts cannot access the tool; only external users added by an administrator to the HMD Global Oy tenant can log in. Legitimate Alternatives for Individual Users

via the Microsoft Authenticator App.