---
title: Register with Linux & Chromebook
slug: register-with-linux-without-vm
description: How to Register Cronus Zen on Linux Without a Virtual Machine.
icon: 🔑
docTags: 
createdAt: 2025-06-19T17:35:12.946Z
---

This guide explains step-by-step how to register your Cronus Zen on Linux or using a Chromebook without the need for a Virtual Machine (VM). 

:::hint{type="warning"}
The Marketplace feature is currently not functional with this method
:::

# ✅ Google Chrome & Access the Firmware Tool

1. **Install Google Chrome** if it’s not already installed
2. Visit: [https://firmware.modcentral.ca](https://firmware.modcentral.ca)
3. Connect your **Cronus Zen in** [bootloader mode](docId:7cpnL5ScNTyU9B2dWqIyb) using the **top port**
4. Receive an **Access Denied** error? follow the steps below!

:::hint{type="danger"}
# Received Access Denied Error

1. Open a **Terminal window**
2. Reconnect the Zen in **bootloader mode**
3. Run the command: **lsusb**
   - Too many devices? Try: **lsusb | grep ZEN**
4. Create a new udev rule file: **sudo nano /etc/udev/rules.d/50-zen.rules**
5. Paste the following line into the file:
   - **SUBSYSTEM=="usb", ATTR{idVendor}=="1209", ATTR{idProduct}=="2ffb", MODE="0666"**
6. Press **Ctrl + X, **then **Y, **then **Enter **to save and exit
7. **Reboot your system**
:::

# 🗝️ Register Your Zen

1. Open Chrome and revisit **firmware.modcentral.ca**
2. Connect your Cronus Zen in bootloader mode and click **Connect**
3. You should now see your **serial number** and update** firmware **if needed
4. **Copy your serial number**

# 🏁 Final Registration on the Zen Dashboard

1. Go to the new dashboard: [https://gpclib.cmindapi.com/login](https://gpclib.cmindapi.com/login)
2. Log in using your **Discord account**
3. In the browser's address bar type:
   - **https\://gpclib.cmindapi.com/devices/register?serial=**<font color="#B91C1C">**YOUR\_SERIAL\_HERE**</font>
4. Replace "<font color="#B91C1C">YOUR\_SERIAL\_HERE</font>" with your actual serial number
5. You should see a **Device Registered** message and your Cronus ZEN will appear in your dashboard
6. Follow the [final](docId\:IfSSF19ZgIoRxZdwlGVrF)**&#x20;linking step in Discord** to complete setup

***

:::hint{type="success"}
# Chromebook user

If you're using a Chromebook, you can skip the udev rules setup and follow these simplified steps:
:::

# 💻Chromebook Users

1. Open **Google Chrome** and visit: [https://firmware.modcentral.ca/](https://firmware.modcentral.ca/)
2. Connect your **Cronus Zen in bootloader mode** (top port)
3. Click **Connect** to view your **serial number**
4. Copy the **serial number**
5. In new tab go to :&#x20;
   - https\://gpclib.cmindapi.com/devices/register?serial=<font color="#B91C1C">YOUR\_SERIAL\_HERE</font>
6. Replace "<font color="#B91C1C">YOUR\_SERIAL\_HERE</font>" with your actual serial number.
7. You'll see a **Device Registered&#x20;**&#x6D;essage
8. Follow the [final](docId\:IfSSF19ZgIoRxZdwlGVrF)**&#x20;linking step in Discord** to complete setup
9.

🫰Special thanks to *Gatsugatsusama (Cronus Zen Discord Moderator)* for the methods