Password Recovery ASA 5520

Password Recovery Process for Cisco ASA 5520.

1. Reboot Power
2. When prompted , press Esc to interrupt the boot process and enter ROM monitor mode.You should see a Rommon Prompt (rommon#0> ).
3. rommon#0>confreg (press enter).
4. current configure register should be default of 0x01. Device will ask if you want to make changes to the configuration register.
   Answer : NO
5. You must change the configuration Register to 0x41.
6. rommon#1>confreg 0x41
7. Reset the device.
8. rommon#2> boot
9. Now after booting you will see a general user mode like. ciscoasa>
10. ciscoasa> enable password
11. ciscoasa#
12. ciscoasa#copy startup-config running-config
13. ciscoasa#config t
14. ciscoasa(config)#enable password
15. Reset the configuration to default value 0x01.
16. ciscoasa(config)#config-register 0x01
17. View the configuration register setup
18. ciscoasa#show run startup-config
19. reload
20. ciscoasa#reload
21. System config has been modified,save [Yes][No]
22. press Yes.