Мануал пробовали читать?
If a password is lost, you can perform the password recovery procedure from
the Startup menu. The password recovery procedure enables entry to the
device one time without a password.
To recover a lost password for the local terminal only:
1. From the Startup menu, type [3] and press <Enter>. The password is
deleted.
Note
To ensure device security, reconigure passwords for applicable management
methods
вот ссылка на мануал от другого, из той же серии. Но думаю подойдет:
files.sotmarket.ru/instr/aksy_dlya_pc_notebook/kom...