Step 10 – Once you enter this command, on your phone press the volume key to select “Unlock The Bootloader” and press the power key to confirm. The phone will reboot and enter in-depth test mode – all the user data on the phone will be cleared.

Step 11 – The phone should automatically reboot now with an unlocked bootloader. If it doesn’t just enter the following command on your computer.
fastboot reboot
That’s it! Your Realme X bootloader is now unlocked! You can now install a custom recovery, a custom ROM or any system tweak you like. Just be careful with what you do! 😉
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