# Power boards firmware update

{% hint style="info" %}
Up-to-date firmware binary with all previous versions can be downloaded from [this link](https://github.com/airvolute/DroneCore.Suite/tree/main/DroneCore.Suite/DroneCore.Power/MCU_Firmware).
{% endhint %}

**Instructions:**

* First, download and unzip [Airvolute\_firmware\_updater.zip](https://github.com/airvolute/DroneCore.Suite/blob/main/DroneCore.Suite/DroneCore.Power/Applications/Airvolute_firmware_updater.zip) on your on Windows host PC.
* Connect the Alink USB-serial converter from the host PC to the CONFIG connector of the .Power board
* Leave the power supply to DroneCore.Power turned off
* Open the application and choose the corresponding COM port (the COM port number can be checked in Device Manager)
* Check the "Use Default Settings" checkbox

![](/files/tDCNkGLPF6aWs7iidI7L)

* Click on the "Connect" button

![](/files/owtJrYSjnY43WVbvFfZx)

* If the application successfully connects to Alink, choose the "STM" processor option, and click the "Ping" button.

![](/files/kmtpr6Bb5YyO0HBc6hum)

* The application is now waiting for device connection
* Connect the power supply to DroneCore.Power board and the application should automatically recognise the AV\_PB6S40A Device type

![](/files/fcb3fVyZsj4nZQOgZt29)

* Now, if the device is checked and recognised, click on the "Browse File" button and search for the firmware binary in your filesystem
* Then, click on "Write File"
* Wait while writing is in progress

![](/files/n4QXSW4DQEd3DWZFsner)

* After writing is complete, click on the "Disconnect" button to close the COM port

![](/files/Ix30vt4J2rV6edGinqpZ)

* Firmware is now updated, and the device is running


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