How to UBL (unlock boot loader ) and LBL (lock boot loader)

Your mi device

Before we talk about how to unlock mi device we should have to know what its  bootloader ?

Bootloader  is a way to develope your device if its lock your development its more limited you don’t free to make your device tastier.

After that we shoud know what is the risk of unlock your bootloader

1.If you was unlock your bootloader you can modify your Firmware , but if the firmware didn’t match  it can make your device soft or hardbrick

2.lost IMEI

3.device id lost

4.security ware

5.eMMC damaged

After know all the risk of that DWYOR

Now unlock your devices

Don`t forget to enable usb debuging mode

Tap miui version 7x and activate developer option in addtional settings

1.visit http://en.miui.com/unlock then click unlock now

2.follow the steps then you can download software to unlock your device

Clik download mi unlock

3. instal and open mi unlock

4. you should login with registered mi account

5. reboot your device to fastboot mode by turn off and pres power and volume down at same time

6. wait until your device unlocked . and finish

Now how to lock again your device

1. Download adb

2. extrack the zip

3. clik the directory addres of the file and type cmd it will open comand prompt

4. connect your device via usb then enter fastboot mode

5. type “adb devie oem device-lock’’ and your device will lock again

6. end

Just that for this time thankyou