Type adb reboot bootloader . The phone will restart into a special screen (fastboot mode). Unlock: Type fastboot flashing unlock . Note: On older devices, use fastboot oem unlock .
This guide outlines the general, high-level process for using bootloader unlocking tools on Android devices as of 2026. Unlocking the bootloader allows for installing custom firmware (like LineageOS) and obtaining full system root access. ⚠️ Critical Warning & Pre-requisites unlock-tool-loader
Unlocking the bootloader will factory reset your device, erasing all internal data. Backup your data first. Warranty: This may void your device warranty. Security: Unlocking lowers device security. Type adb reboot bootloader
Go to Settings > About Phone and tap Build Number 7 times. unlock-tool-loader
Download Android SDK Platform-Tools for Windows, Mac, or Linux.