Yes, it`s free for all but you must register first.
Reactivation Lock is designed to prevent access to the device after it has been lost or stolen.
It uses Samsung account to regain access and use of the device.
Samsung account authenticates and authorizes protection of your personal information.
How Does Reactivation Lock Work?
When Reactivation Lock is enabled, it activates a special flag set in a secured memory storage area of the device.
When active, this flag cannot be disabled by performing a factory reset or Android recover reset.
NOTE: Don't submit devices that ask for Google Account = No Refund.
NOTE: Don't submit IMEI from Dual Sim Phone = No Refund.