I have X4500 with solaris 10 OS and software version 5.10. /etc/release information is given below.

Solaris 10 11/06 s10x_u3wos_10 X86
Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 14 November 2006

My ILOM firmware version is 1.1.1. I want to update the firmware. I have chosen to update the firmware to Sun Fire X4500 Software 1.5.1. It showed the above error message while doing so. I tried to upgrade to Sun Fire X4500 Software 1.2 . Nothing worked. I had the same problem. I downloaded the patches from the following link

Sun Fire X4500 Server - Downloads

Moreover, I found the same error while searching in some forums. The link is given below.

Servers - General Discussion - Blade 6000 ILOM firmware upgrade not working

What should I do next ? Please help me.

Thank you so much.