> For the complete documentation index, see [llms.txt](https://docs.holybro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.holybro.com/gps-and-rtk-system/gps-led-and-buzzer/status-led-changes.md).

# Status LED Changes

<figure><img src="/files/tMDcujFbF2BshQ76MUwJ" alt="" width="188"><figcaption></figcaption></figure>

The Status LED driver model was changed from **NCP5623** to **IS31FL3195**. \
This new LED is supported in **PX4 1.14** & **Ardupilot 4.4.0** and later.

{% hint style="info" %}
For Ardupilot version 4.4.0 to 4.4.3, you will need to go to the parameter **NTF\_LED\_TYPES** and enable **IS31FL3195 External** & **IS31FL3195 Internal.**
{% endhint %}

If you have a custom firmware or you are unable to upgrade the firmware version, please review the following Pull Requests that enabled the **IS31FL3195** LED Driver.&#x20;

### PX4

* [PR# 21440](https://github.com/PX4/PX4-Autopilot/pull/21440)
* [PR# 21718](https://github.com/PX4/PX4-Autopilot/pull/21718)

### Ardupilot

* [PR# 24010](https://github.com/ArduPilot/ardupilot/pull/24010)
* [PR# 25536](https://github.com/ArduPilot/ardupilot/pull/25536)
* [PR# 25537](https://github.com/ArduPilot/ardupilot/pull/25537)

If you want to know the meaning of the status LED, please refer to page below:

{% content-ref url="/pages/2mZ2GL7gNLoeqYb4tbUS" %}
[GPS LED & Buzzer](/gps-and-rtk-system/gps-led-and-buzzer.md)
{% endcontent-ref %}


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