Update or mod unlock Samsung netbook

I have an ageing Samsung n130 that seems to have its sata2 hdd limited to sata1, making my new ssd almost pointless.

So I tried to update the bios. The Samsung website doesn't seem to offer an update that works and the phoenix website directs me to a paid for program called biosagentplus.

How can I update my bios with either an official samusung/phoenix bios or a modded one. Where would I find the update? Thanks