What is the calibration password to unlock the instrument?

The security code is "AT3446XA" , it is available in the manual in the section Security Code Override. (please attached the link of manual as hyperlink https://www.keysight.com/main/redirector.jspx?action=ref&cname=EDITORIAL&ckey=2345839&lc=eng&cc=MY&nfr=-536902435.1058513.00)