6ES7317-2FK14-6AB0 Firmware

[Ben 1]

Hello Guys... I am looking for older firmware for above cited 317F CPU. It came with 3.2.7 fw and Siemens website shows up to 3.1. I am looking for fw 2.5. This is for a customer that wants to keep the FW frozen to older version for all copies of that machine. However, I tried to download the program (made for older FW cpu) and the safety portion does not download. Online CPU message shows "firmware V2.5, can be used for safety applications"!! So, is there a link to Siemens or by miracle somebody has this "CPU_HD.UPD" file?

[Ben 1]

An Update.. 6ES7317-2FK14-0AB0 is the latest 317F CPU. It can only go down to FW3.1 which is available on Siemens website. Earlier version of same CPU was 6ES7317-2FK13-0AB0, which could have FW version 2.5.1 but that product is at the end of life cycle. Cancelled in Nov 2010. So I'm Ok with my first option.