poco f1 boot unlock | flashing free poco f1 fastboot mode by softichnic

You may require following files for the smooth unlocking process. 
Download and save/install them on your PC 
proceeding with the steps given above

Steps to unlock Bootloader of the Poco F1 Bootloader

WarningBootloader unlock wipes the data/internal storage. So, backup your personal and important files before proceeding.
  1. First and foremost, visit the MIUI Unlock website, and fill out the official bootloader unlock request form (requires an MI account). It’d take 2 to 4 days for the Mi team to accept the request and a code will be sent.
  2. When you receive your code, go to Settings > About Phone > tap “MIUI Version” 7 times to unlock Developer Mode.
  3. Go to Additional Settings > Developer Options > enable USB Debugging and OEM Unlocking.
  4. Now download the Mi Flashtool and run it as Administrator on your computer.
  5. Sign into your Mi account in the Mi Flashtool, and make sure you are also signed in on your Poco F1 with the same account (check in Settings > Mi Unlock Status > Add Account & Device).
  6. Power-off the Poco F1, and reboot into Fastboot Mode (hold Volume Down + Power).
  7. Connect your Poco F1 to the PC via USB, and click the ‘Unlock’ button in Mi Flashtool.
  8. Your Poco F1 will be unlocked and factory reset. When the process is finished, you can launch an ADB terminal and check if it was successful by typing:
  9. fastboot oem device-info
  10. If your bootloader was successfully unlocked, the ADB terminal should display “Unlocked”. If not, repeat the procedure once again. It should work unless a serious issue with the device or software itself.
In case of any further assistance, don’t forget to drop in the comments section.