Congratulations! If you followed these steps successfully, your Nokia 3.4 now has an unlocked bootloader. You will see a warning message on every boot stating "The bootloader is unlocked," which is normal.
Since there is no "free" official tool, the community relies on dedicated experts: TechMesto Service: Bootloader Unlock Service for Nokia 3.4 nokia 3.4 unlock bootloader
Unlocking the bootloader is the first step toward total device ownership. It allows you to: Install Custom ROMs: Congratulations
: He could hire a guide from services like TechMesto , who would use a remote desktop to flash the necessary files and turn the lock for him in about ten minutes. Since there is no "free" official tool, the
Enable and USB Debugging in Developer Options. Reboot to fastboot mode (Volume Down + Power). Run fastboot flashing unlock or fastboot oem unlock . Community Perspectives
Unlocking your bootloader will factory reset your phone and void your warranty . Only proceed if you are comfortable with advanced software modification.