Unlock Apex Admin User

select user_id from APEX_050000.WWV_FLOW_FND_USER where user_name = 'ADMIN' order by last_update_date desc;

update APEX_050000.WWV_FLOW_FND_USER
set web_password = 'pass'
where user_name = 'ADMIN'
and user_id = 1670116652066977;
commit;

alter session set current_schema = apex_050000;

begin
wwv_flow_security.g_security_group_id := 10;
wwv_flow_fnd_user_api.UNLOCK_ACCOUNT('ADMIN');
commit;
end;

OR

sqlplus / as sysdba @apxchpwd.sql