Initio 1430 firmware update for Mac OS 10.3.6 Read Me

You will need to download the new firmware file and flash utility.  

Online are 6 packages to assist you with the update. Please pick the package that matches the operating system you are going to use to update the firmware.

In the folder with the new firmware you will find a utility that you need to run, follow the prompts to Update the Firmware and use the .UPD file in that folder as the new firmware file.