Seeed-Studio-Wiki/docs/FAQ/XIAO/reflash_the_bootloader.md
2024-10-31 09:17:45 +08:00

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---
description: XIAO ESP32C3-FAQ
title: How to reflash the bootloader with factory firmware
#image: https://files.seeedstudio.com/wiki/wiki-platform/S-tempor.png
slug: /reflash_the_bootloader
last_update:
date: 6/30/2023
author: cheng.tang
---
You can simply connect the board to a PC via **USB Type-C** and reflash the bootloader with factory firmware by using **ESP RF Test Tool**.
- **Step 1.** Hold on the **BOOT BUTTON** and connect XIAO ESP32C3 to the PC to enter **bootloader mode**
- **Step 2.** After it is connected, release the BOOT BUTTON
- **Step 3.** Visit [this page](https://www.espressif.com/en/support/download/other-tools) and download **ESP RF Test Tool and Test Guide**
<div style={{textAlign:'center'}}><img src="https://files.seeedstudio.com/wiki/XIAO_WiFi/esp-flash-tool-download.png" style={{width:1000, height:'auto'}}/></div>
- **Step 4.** Extract the **.zip**, navigate to `ESP_RF_Test_EN\ESP_RF_Test_EN\EspRFTestTool_v2.8_Manual` and open **EspRFTestTool_v2.8_Manual.exe**
<div style={{textAlign:'center'}}><img src="https://files.seeedstudio.com/wiki/XIAO_WiFi/esp-flash-tool-open.png" style={{width:500, height:'auto'}}/></div>
- **Step 5.** Select **ESP32C3** as the ChipType, your COM port, **115200** as the BaudRate and click **open**
<div style={{textAlign:'center'}}><img src="https://files.seeedstudio.com/wiki/XIAO_WiFi/esp-flash-2.png" style={{width:500, height:'auto'}}/></div>
You will see the following output
<div style={{textAlign:'center'}}><img src="https://files.seeedstudio.com/wiki/XIAO_WiFi/esp-flash-5.png" style={{width:500, height:'auto'}}/></div>
- **Step 6.** Select **Flash** and click **Select Bin**
<div style={{textAlign:'center'}}><img src="https://files.seeedstudio.com/wiki/XIAO_WiFi/esp-flash-6.jpg" style={{width:500, height:'auto'}}/></div>
- **Step 7.** Download the [factory firmware of XIAO ESP32C3](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/ESP32-C3_RFTest_108_2b9b157_20211014.bin) and select it.
- **Step 8.** Finally click **Load Bin**
<div style={{textAlign:'center'}}><img src="https://files.seeedstudio.com/wiki/XIAO_WiFi/esp-flash-8.png" style={{width:500, height:'auto'}}/></div>
You will see the following output when flashing is successful
<div style={{textAlign:'center'}}><img src="https://files.seeedstudio.com/wiki/XIAO_WiFi/esp-flash-9.png" style={{width:500, height:'auto'}}/></div>