Firmware for Sun Fire X4150

Hello,
I have two sun fire x4150 servers and I want to update them -
when I try to download the latest firmware/bios update for them I get to a page that asks me to connect my user account and supply a support identifier,
I have some old CIS that won't work...
Do I need to have active oracle support contact to download something like a bios update that any other company lets you do for free?

If not - what do I have to do in order to download the said file?
(sorry if it's the wrong section)