how can rest password on tp177a

hi
I have a packaging machine . that controlled with operator panel ( TP177A).
When i will change a parameter with tp177a, that need username & password , but i forgot all username & passwords.
how can i bypass or reset all user & passwords on the tp177a?
also, i have not project source file .
please help me
best regard

https://support.industry.siemens.com/tf/ww/en/posts/problem-with-password-in-tp177/26516/?page=0&pageSize=10

Have you tried the standard password 100 username Admin?

Regards,

hi
that is not standard password

Overwrite the parameter in the plc program.