Open the DWM-Air9000 box and you can see the package list which includes all of the parts below:
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720948434868.png)
Open the Microsoft Store and download the IoT Power PC tool:
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720948603336-1024x832.png)
Connect the device to the PC with A2C wire:
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720948768582.png)
The small dial switch is switched to the right side which is powered by USB by default:
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720948995711.png)
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720949938529.png)
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720950054642.png)
Click the “Connect” button in the lower right corner of the PC tool to connect the DWM-Air9000
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720949128689.png)
The first connection to the PC Tool opportunity prompts you to upgrade the DWM-Air9000 latest firmware, and click “OK” After the software is successfully upgraded, you need to click “Connect” again.
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720949342489.png)
After successfully connecting to the DWM-Air9000, the PC tool displays the circuit ripple random value.
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720949586662.png)
DWM-Air9000 Turn to the PD function page, you can see that the PD / PPS function has been opened by default, which is the premise of adjusting the voltage output value of the charging head;
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720950192683.png)
The default voltage output value of the charging head is 5V, You can reset the output value to 3.3V as follows example:
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720950609674.png)
After resetting done you can see below shows:
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720950530294.png)
Now you are ready to test your device here is an example:
![](https://dwmzone.com/blog/wp-content/uploads/2024/07/1720950700706.png)