Unlocking Bootloader

Requirements:

• A PC/Laptop

• A SIM card

• An Internet connection

• A Mi account with a phone number registered

• A USB cable

You have to connect your account with the Mi Unlock authorization tab which you can find in the developer settings.

Open the device settings > Tap on About phone > Scroll down and tap on MIUI version five times. This will unlock the developer options in your device which can be located in “Additional Settings” tab.

In the Developer options, go to the “Mi Unlock Status” and tap on “Add account and device” in order to authorize Xiaomi to unlock the device associated with the account. Note that it can take up to 168 hours to finish this, you will have to wait for the week before unlocking your bootloader.

The authorization process will use the mobile data of the carrier. Therefore, make sure you have turned off Wi-Fi before adding the account.

Before moving ahead with the next step, enable OEM unlocking and USB debugging while you are in the developer options settings.

Get the official Xiaomi Unlock Tool from here.

Extract the zip file and open the application named “miflash_unlock.exe”. Log in using the same Mi account which is being used on the phone.

Before starting with the bootloader unlocking process, tap on the top-right gear icon to check if there is an update for USB drivers. If this step doesn't work just skip it.

As instructed on the app screen, switch off your smartphone. Take a moment and hold the power button and lower volume button simultaneously. This will open up the fastboot mode in your device. Now, connect the phone with the computer via USB cable.

A new message will appear on the screen, “Phone connected”. Now, click on the “Unlock” button to unlock the bootloader. Note that it will erase all the the data in your phone.

Done, your device is now unlocked. Enjoy flashing stuff and always read guides provided in the group or ask people in the group for help if you're not sure about something to avoid bricks. :)