# KIDZBot Multifunctional Bluetooth Controller Firmware Upgrade
## Online Upgrade  
### Preparation
1.Software Preparation  

Download and install the CH340 driver on your computer. Use the following links:  
[CH341SER](https://www.wch.cn/search.html)
1. **Windows Driver**：

 ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/Xiao1.png)

3.  **Linux Driver**：

 ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/Xiao2.png)
   
5.  **Mac Driver**：

 ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/Xiao4.png)
   
7. **Android Driver**：

 ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/Xiao3.png)

2.Hardware Preparation  

| ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/KIDZBotMultifunctionalBluetoothControllerFirmwareUpgrade01.png) | ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/KIDZBotMultifunctionalBluetoothControllerFirmwareUpgrade02.png) |
| :---: | :---: |
|  KIDZBot Multifunctional Bluetooth Controller × 1   | USB-C Data Cable x  1 |


### Upgrade Steps 
| ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/KIDZBotMultifunctionalBluetoothControllerFirmwareUpgrade03.gif) | ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/KIDZBotMultifunctionalBluetoothControllerFirmwareUpgrade04.png) |
| --- | --- |
|  ① <font style="color:rgb(31, 31, 31);">Connect the KIDZBot Multifunctional Bluetooth Controller to the computer using a USB-C cable.  </font> |  ② <font style="color:rgb(31, 31, 31);"> Open the firmware upgrade platform in Chrome or Microsoft Edge browser, and select the </font>**KIDZBot Series**<font style="color:rgb(31, 31, 31);"> on the left side.  </font> |
| ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/KIDZBotMultifunctionalBluetoothControllerFirmwareUpgrade05.gif) | ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/KIDZBotMultifunctionalBluetoothControllerFirmwareUpgrade06.gif) |
| ③Locate the **Bluetooth Controller** on the right side, expand the drop-down menu to view the firmware upgrade options.   |  ④ Select the firmware version to upgrade, click **Connect**, select the device's COM port, and wait for the connection to succeed.   |
| ![](https://pub-eed680a9b7c24a0c8ca64ceb3e12d6e4.r2.dev/icblocks/docs/KIDZBlocks/06MaintenanceandDebug/03FirmwareUpgrade/img/KIDZBotMultifunctionalBluetoothControllerFirmwareUpgrade07.gif) | |
|  ⑤ Click **Upgrade**. Once the page displays "Upgrade Successful," restart the device to complete the upgrade.   | |