Everything you need to program the Cronus Zen firmware, including where to find the latest version and step by step instructions for both downgrading and upgrading.
To program the Zen's firmware, you must be connected to the internet. If you haven't already downloaded the Firmware Update Tool from the main Cronus Downloads page, here's a direct link 👇 (This is an .exe file and can only be run on Windows 10 or 11).
As of today, the latest Cronus Zen firmware version is 👉
OLED screen suddenly looking like it's snowing? Don't worry, that's just the screensaver 🙂
If your Zen is not detected at this point, and you're sure you have connected the correct micro-USB cable to Zen's CONSOLE/PC USB PORT, and even tried another windows PC, unfortunately the USB cable may have developed a fault. The easy solution is to try another cable - you were given a second micro-USB cable with your Zen and that will work too, or any micro-USB cable that you may have.
There's also a more detailed guide which addresses every known Firmware Problem 👈
If you have tried other USB cables and even another Windows PC and it still won't detect the Zen, sadly it means it has likely developed a fault. You should return it to the original point of purchase for a new replacement under its warranty. If you purchased directly from our store, you have a 90 Day warranty which covers ANY fault.