Guarantees Regarding Forgotten Passwords
Because T5 utilizes advanced encryption technologies, user data cannot be accessed if you forgot your
password. Please write down your password and store it in a safe place. If the product cannot be used
due to your failure to enter correct password, the only way to restore product is to have it reset to
factory settings via an online service by a Samsung Service Center. However, restoring the device to
factory settings will result in a complete loss of all user data. Please be sure to backup important data
on a regular basis.
https://www.bhphotovideo.com/lit_files/357142.pdf
So it sounds like you use their software to reformat it.