Contact the maker, Every thing in the world with a PW has its own rules for resets
call them, first.
here I will google for you.
or the manual
https://www.manualslib.com/manual/249902/Benq-Mp610.html

the word password is there too many times, too much for me . to read to you.

5th google hit bingo makers home page

https://www.benq.com/en-us/index.html


call the and ask or click support.