Large or small Bacardi? Genuine, or supermarket own-brand white rum?
Yes. Just Use Evox dash. Install it on your Xbox (anywhere you like, e.g. E:\Apps\Evox\ ), put the BIOS you want in E:\Apps\Evox\BIOS\, then select "Flash BIOS" from the Evox Menu.
If it's a 1.0 or 1.1 then the latest BIOS is X2.5035.