Downgrading firmware?

[AMaca.1]

I'm trying to downgrade a board to V2J27M15 and I read that you can do that using older version of ST-Link Utility, but I can't find where to download ST-Link Utility 2.3.30. Does anybody know? Thanks.

[Tesla DeLorean]

Posted mirrors previously, might get to this later.​

[Tesla DeLorean]

ST-LINK Utility 2.3.0

https://drive.google.com/open?id=0B7OY5pub_GfIOFVzQTV0VEE1TG8

V2J27M15

https://drive.google.com/open?id=0B7OY5pub_GfITE82bnBza2RCbEE

[AMaca.1]

Thank you!