Requirements: Xiaomi Mi Flash Tool will only work on the Xiaomi Devices which is running on Qualcomm Chipset. It will not support the Xiaomi Devices which are not running on Qualcomm Chipset.
Use Xiaomi MI Flash Tool
1: Download and extract the Xiaomi MiFlash Tool on your computer. After extracting the Xiaomi Mi Flash Tool, you will be able to see the following files:
2: Now, Open the Setup File to install Xiaomi MiFlash Tool on your computer.
3: Download and extract the Xiaomi Stock Firmware (fast boot files) on your computer. After extracting the Xiaomi Firmware, you will be able to see the similar files:
4: Now, you need to install the Xiaomi USB Driver on your Computer (you can also download the Xiaomi USB Driver separately).
5: Turn Off your Xiaomi Device.
6: Now, You need to boot your Xiaomi Device into the Download Mode (fast boot mode). To boot into the download mode: Press and Hold Power + Volume Down button for 6-8 seconds.
7: Once you have booted into the Download Mode, you will be able to see the following screen on your device:
8: Now, Connect your Xiaomi Device to the Computer using the USB cable.
8: Now, Open Xiaomi MiFlash Tool from Start Menu.
9: Once Xiaomi Mi Flash Tool is launched you will be able to see the following screen:
10: Now, Click on the Select Button and locate the Firmware Folder.
11: Now, Click on Flash Button to begin the Flashing Process.
12: Once the flashing process is completed, you will be able to see the Success Message in Xiaomi Flash Tool.
Readme Once:
[*] Compatibility: You can follow the above tutorial to flash stock firmware on almost all the Xiaomi Devices which are running on Qualcomm Chipset.
[*] Xiaomi Stock Firmware: If you are looking for the original firmware for your device then head over to Download Xiaomi Stock Firmware for all devices page.
[*] Xiaomi USB Driver: If you are looking for the original USB Driver for your device then head over to Download Xiaomi USB Driver for all devices page.
[*] Credits: Xiaomi Flash Tool is created by Xiaomi Mobility INC. So, full credits go to them for sharing the Flash Tool for free.