How To Unlock Bootloader On Xiaomi Mi 8

What is an Unlock Bootloader?

When we turn on a device, a code known as bootloader runs. This code initializes some hardware, loads the kernel and ramdisk, and starts the boot process. This process applies to all technical devices such as laptops, PCs, smartphones, and so on. However, every Android OEM manufacturer locks the bootloader, even though it is open source. If you want to try a custom ROM, unlocking the bootloader is essential. But, manufacturers have a policy of making the smartphone with an unlocked bootloader void the warranty. They want you to stick with the stock ROM. An unlocked bootloader will allow you to root your android smartphone, flash TWRP, and custom ROM in a simple, easy method.

Before doing the methods, I just want to warn you that. By doing this, you will loose the warranty and sometime if you dont read the steps and do something wrong can brick your device. So read carefully before doing something wrong.

What you need

1) Laptop or PC
2) Charge your phone to at least 70%
3) Backup your device just in case you need it later
4) Working USB Cable
5) Download ADB and Fastboot Tools to your PC and Extract it
6) Download the Mi Unlock tool – CLICK HERE
7)Download Xiaomi USB Driver

Watch this video: How to Unlock Bootloader on any Xiaomi Phones

Steps for How to Unlock Bootloader On Xiaomi Mi 8

1. To Unlock Bootloader on Xiaomi Mi 8, You need to download the Mi Flash Tool First
2. Extract the downloaded file MiFlashTool Zip
3. Now Open the MiFlashUnlock from the folder that you extracted
4. 
5. Click on Agree 
6. Now you will be asked to Log in. Log in with your Mi Account, If you don’t have one then Sign UP – CLICK HERE to Sign Up
7. After Login, the validation process will start and you will get a message that “Your device is not Supported”. Don’t worry! Now Click the “Go” button and it will take to the pagehttp://en.miui.com/unlock/ 
8. You will see a blue screen in the page with text UNLOCK YOUR MI DEVICE
9. Click the Unlock Now button 
10. In the browser you will be asked to log in with Mi Account again, So log in and Fill your details with your Mobile Number
11. You will receive an OTP for verification on your phone.
12. Enter the OTP number on the browser to complete the process.
13. You need to wait until your application is accepted.
14. When your application is approved, you will again receive an OTP in your registered phone number.
15. Now confirm the OTP number on the Unlocking screen
16. You are almost done. Now you will have the ability to Unlock your device from Mi Unlock Tool
17. Open the Mi Unlock Tool from the extracted folder and now you should have permission to unlock the phone.
18. Once your phone is connected, the Unlock button will become active.
19. Simply Click on Unlock and your bootloader will be unlocked Start Flashing Custom Recovery, Custom Rom, and more.
20. Enjoy!

I hope this guide was helpful to Unlock the bootloader on your device. If you have any queries or feedback, please leave a comment below.