Seagate circuit board swap – need same firmware number/ part ?

I have a toast circuit board that doesn’t even spin or get recognized in the bios – I want to buy a new one and swap it. The problem is I can get the same serial and model, but the firmware in my old drive is 3.AAC and the new firmware is 3.AAK.
Also the P/N is 9BJ14G-300, but the new one is 9BJ14G-308. Will this make a difference? Is there something I should look out for?