> For the complete documentation index, see [llms.txt](https://sharinghub-eng.kittenbot.hk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sharinghub-eng.kittenbot.hk/airelated/ai-camera-koi-2/koi-1-and-koi-2-firmware-upgrades.md).

# KOI 1 and KOI 2 Firmware Upgrades

### KOI (1 & 2) have separate firmware files, you need to download the correct one.

* Both KOI 1 and KOI 2 can be updated the same way, refer to the following article for more information.

### 💡KOI 1 upgrading to KOI2

KOI 1 users can get access to the improvements of the KOI 2 by updating the firmware to V4.

### <mark style="color:red;">**Attention!**</mark>

### <mark style="color:red;">**Remove the micro SD card from the KOI before updating.**</mark>

### <mark style="color:red;">**Files such as Image Classifier Models/photos can be stored on board instead of needing an SD card after updating to V4 model.**</mark>

#### V4 Firmware for KOI 1

*<mark style="color:orange;">Latest firmware V4.0.7</mark>*

{% file src="/files/qlo9TvXSQT8h2b8h8jYM" %}

This version is applicable to:

1. Upgrading Original KOI 1(Micro USB Port) to V4 firmware.
2. Periodic updates for KOI 1 that has been upgraded to V4 firmware.

### 💡KOI 2 (Type C) Periodic Updates

*<mark style="color:orange;">Latest Firmware V4.0.7</mark>*

{% file src="/files/7LGs4TJADQsklVa7olsD" %}

This version is applicable to:

1. Periodic Updates for KOI 2(USB Type C).

### For past firmware versions, please visit the following page:

{% content-ref url="/pages/YeHEglo2A2uBoZwo2i2O" %}
[Broken mention](broken://pages/YeHEglo2A2uBoZwo2i2O)
{% endcontent-ref %}

## How to update KOI firmware

Use a USB cable to connect KOI to the computer.

<figure><img src="https://kittenbothk.readthedocs.io/en/latest/_images/usb.jpg" alt=""><figcaption></figcaption></figure>

Unzip the firmware files and open KOI\_Flasher.exe.

<figure><img src="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsN6MlwBFbL3P67FzMMyL%2Fuploads%2FBg8sqz6HHvvmFmsn2DyU%2Fimage.png?alt=media&#x26;token=326443d8-0410-4b8e-a861-060d12de8781" alt=""><figcaption></figcaption></figure>

KOI will be updated automatically.

<figure><img src="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsN6MlwBFbL3P67FzMMyL%2Fuploads%2FIhvJI1VgdJoywtxEOT8l%2Fimage.png?alt=media&#x26;token=b6046ed2-fd98-4c62-9e28-3bb9366d34e1" alt=""><figcaption></figcaption></figure>

Do not unplug the USB cable or turn off the computer during the update process.

The update takes approximately 10 minutes, you can close the program after Rebooting is shown.

<figure><img src="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsN6MlwBFbL3P67FzMMyL%2Fuploads%2FzM7HQB4R0soZkWZKtCmw%2Fimage.png?alt=media&#x26;token=03ced8ed-629a-4cc5-b477-e8ead71785c5" alt=""><figcaption></figcaption></figure>

Reboot the KOI to see if it has been updated.

<figure><img src="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsN6MlwBFbL3P67FzMMyL%2Fuploads%2FZA4ygeOzn4ehwJZX1hQU%2Fimage.png?alt=media&#x26;token=721f8943-0d97-44b8-84c4-a9675084b194" alt=""><figcaption></figcaption></figure>

### KOI Firmware Update Demo Video

{% embed url="<https://youtu.be/3I2sggAglhY>" %}

### KOI 1 Reverting Firmware to V1

Follow the instructions for reverting firmware to V1. (Only applicable for KOI 1)

{% content-ref url="/pages/JHYsZzdrbViOBlzyqwZf" %}
[KOI Firmware Update](/airelated/koi/koi-firmware-update.md)
{% endcontent-ref %}

{% embed url="<https://youtu.be/3I2sggAglhY?si=2Nvj5qgIdHGvdur2&t=238>" %}