1. You must apply for unlocking on this site:
http://en.miui.com/unlock/ 2. Dowload Mi Unlock Tool
3. Go to Setting > My Device > All Specs> Tap On MIUI Version 7 times > Additional Setting > Developer Option > Enable USB Debugging > Enable OEM Unlocking.
4. Now from Developer option > Mi Unlock status > Add account and device.
5. Wait 72 hours.
6. After that Reboot Your device into fastboot method, For that simply turn off your device, press the Power button and Volume down ( – ) button at the same time. Then connect the device to the Windows PC/laptop via a micro USB cable or USB-C cable.
7. Launch Mi Unloock Tool as Administrator, log in with you Mi Account.
8. Click Unlock button and accept.
9. After reaching 100% status in the app, your phone should be unlocked.
Install Team Win Recovery Project or other Recovery
(be sure that you have unlocked your bootloader)
1. Install Minimal ADB and Fastboot from this link: https://androidmtk.com/download-minimal-adb-and-fastboot-tool download the latest one. Download a Recovery.
2. Run Minimal ADB and Fastboot as Administrator.
3. Cd to folder where you have the recovery downloaded with command "cd C:\Line to Folder\Folder with Recovery\".
4. After that Reboot Your device into fastboot method, For that simply turn off your device, press the Power button and Volume down ( – ) button at the same time. Then connect the device to the Windows PC/laptop via a micro USB cable or USB-C cable.
5. Flash Recovery with command "fastboot flash recovery recovery_name.img".
6. If you want to boot to recovery immediately run command "fastboot boot recovery_name.img".
Install Xiaomi.eu/other Moded Stock or Custom Rom
(be sure that you have unlocked your bootloader)
IF YOU FOLLOW ME INSTRUCTIONS, ALL YOUR DATA WILL BE WIPED
1. Download a rom for example Xiaomi.eu Weekly.
2. Flash Recovery to your Phone. Go to Wipe and wipe Data, Cache, Dalvik, Storage and System.
3. Flash Recovery to your Phone. Transfer Downloaded Rom from PC to Phone.
4. Go to Install, navigate to the rom and install it.
5. Reboot the Phone. System should boot after some time. After configuration Phone is ready to use.