[Security] i can not recover my admin password.

[Serpius]

once again try using below SQL queries

UPDATE `mybb_adminoptions` SET `loginattempts` = '0', `loginlockoutexpiry` = '0' WHERE `uid` = '1';

UPDATE `mybb_users` SET `salt` = '', `password` = 'actualRequiredPassword' WHERE `uid` = '1';

i tried 

 0 rows affected. (Query took 0.0003 seconds.)
UPDATE `mybb_adminoptions` SET `loginattempts` = '0', `loginlockoutexpiry` = '0' WHERE `uid` = '1'

 0 rows affected. (Query took 0.0004 seconds.)
UPDATE `mybb_users` SET `salt` = '', `password` = 'test' WHERE `uid` = '1'

it seem does not work

See this prefix? mybb_ That's the default prefix that MyBB uses during the first installation.

Are you using the SAME prefix or are you using a different prefix for your database?

When you are in the SQL query, double check to make sure you're using the correct prefix.