# STEP 2: Update Firmware

This page explains how to update the Cronus Zen firmware to the latest available version.

## Step-By-Step

***

{% stepper %}
{% step %}
**Press** and **hold** the Cronus Zen’s blue **reset button**.

<div align="left"><figure><img src="/files/5E1gIfXW0JsmAGEiJihc" alt=""><figcaption><p>PC Connection via CONSOLE/PC USB Port</p></figcaption></figure></div>
{% endstep %}

{% step %}
Plug your Cronus Zen into a computer using the **CONSOLE/PC USB** port.
{% endstep %}

{% step %}
The OLED screen displays **Zen Bootloader.**
{% endstep %}

{% step %}
In Zen Studio, navigate to **Tools > Online Firmware Update**,\
or visit **firmware.modcentral.ca** directly.
{% endstep %}

{% step %}
Click **Connect**, select **Cronus ZEN**, then click **Connect** again.

<div align="left"><figure><img src="/files/rwp3zy6xVmkuSQro0uAS" alt=""><figcaption></figcaption></figure></div>

If the Cronus Zen does not appear as shown above, make sure it is in **Bootloader Mode** and connected to the top USB port.
{% endstep %}

{% step %}
Click **Latest.**\
The firmware update will begin automatically and complete in approximately 20 seconds.
{% endstep %}
{% endstepper %}


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