Update File Not Recognized

I'm currently running version 2.1 on the ETC Ion and I need to update to 2.4. I downloaded the zip and unzipped it, putting the exe file as is onto the root directory of a USB drive. However, the board doesn't recognize any available installation.

Does anyone know what I'm doing wrong?

I'm using a Mac if that makes a difference. Do I need to use a PC to download the file?

Thanks for any help.

Related