adb reboot bootloader The phone screen goes black, then shows the screen — a tiny white text on a black background.
For now, you hold an unlocked device in your hands, and the possibilities are endless.
Disclaimer: This process will wipe all data, void the warranty, and may brick the device if done incorrectly. Proceed at your own risk. Your Nokia 3.4 has served you well—stock Android, clean interface, monthly security patches. But lately, you’ve felt the itch for more: custom ROMs, root access, kernel tweaks, or just removing bloatware that even Nokia couldn’t hide.