How to Easily Lock the POCO M3 Bootloader?

Note: This will ERASE all of your personal data on the smartphone so backup anything important ahead of time.

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Requirements:
POCO M3 Fastboot Mode - https://www.youtube.com/watch?v=rjsDi1aggaE
ADB & Fastboot Tools - https://www.youtube.com/watch?v=pZZAIrVJbP0
Stock MIUI Firmware Tutorial - https://www.youtube.com/watch?v=j44FhDnqgis

1. Intro [00:00]
2. Reboot the Xiaomi POCO M3 into Fastboot Mode. [01:23]
3. Then connect it to the PC with a USB cable.
4. And open up a Command Prompt, PowerShell, or Terminal in the same folder as your ADB & Fastboot tools [02:16]
5. When ready, execute the fastboot command as instructed [03:00]
6. Wait for the device to reboot
7. Activate Android like normal [05:22]
8. Enable Developer Mode on the POCO M3 [0639]
9. Disable the "OEM Unlocking" toggle from within the Developer Options menu [07:22]
10. Restart the smartphone.
11. And then check the status of the same toggle again [08:07]
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MicroUSB Cable - https://amzn.to/38dkpeM
USB-C Cable - https://amzn.to/2OqlTvi
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Видео How to Easily Lock the POCO M3 Bootloader? канала Explaining Android