: This process often voids your manufacturer warranty. Prerequisites Two Android Devices : Master Device : Runs Termux and must support USB OTG. Target Device : The phone you want to unlock.

Unlocking the bootloader triggers a mandatory factory reset that wipes all user data, including photos, messages, and encrypted files.

The device will execute the wipe and reboot. You can then disconnect the cable. The bootloader is now officially unlocked. Troubleshooting Common Issues Cause: Termux does not recognize the connected phone.

On the Host device, a Termux popup may appear asking for permission to access the connected USB device. Tap or Allow . Step 4: Boot the Target Device into Fastboot Mode

Does not work on locked bootloaders from Samsung, Xiaomi (newer), or Pixel.

: While generally reliable, termux-fastboot commands can occasionally be slower than a PC because they lack a background daemon service. Core Requirements To use this method successfully, you must have:

Execute the command termux-fastboot flashing unlock (or fastboot oem unlock for older devices).