Ahoy, got an obsolete headset, looking for a firmwear update

I have a set of Kraken 7.1 Chromas, my other headset has karked it and I have been forced into using this one... Pity this headset is not recognised by Synapse and is calling itself CONEXANT USB AUDIO. I've been searching for hours and all it needs is a firmware update and I cannot find it for the life of me. My heart soared finding a google drive link on reddit only to have my dreams dashed as the file had been taken down. I know he is old, but he is all I got. Please, someone, help me find that file :c