On ASA 5520 device enable password is not getting change

[ramkumar-n]

Hi ,

I try to change password on the ASA 5520 device and its not getting changed.

FW(config)#  enable password cisco1234
(config)# end

After that I  perform a write memory.

But somehow I relogin again the enable password  still remain as the old enable password

version : 7.2(5)2.

Pls further advice?