To unlock your Android bootloader using instead of a PC, you essentially turn one Android phone into the "controller" for another. This process relies on a secondary device and an OTG adapter to send fastboot commands. Prerequisites Two Android Devices
: One is the "Host" (running Termux) and the other is the "Target" (being unlocked). OTG Adapter : Needed to connect the two phones via a data cable. Enable Developer Options device, go to Settings > About Phone Build Number seven times. Then, in Developer Options USB Debugging OEM Unlocking Backup Your Data : Unlocking the bootloader will factory reset your device and erase all personal files. Setup Steps in Termux (on Host Device) Install Termux : Download the latest version from or F-Droid (avoid the outdated Play Store version). Update Packages
: Run the following commands to ensure your environment is ready: pkg update && pkg upgrade Install ADB & Fastboot : Use a script or package to install the necessary tools: pkg install tur-repo pkg install android-tools Unlocking Process
Many users search for a command like:
termux-setup-storage -> su -> oem unlock unlock bootloader using termux better
This does not work for two reasons:
ro.boot.flash_locked or ro.boot.verifiedbootstate properties are read-only. You cannot write to them because the kernel itself enforces this immutability based on the bootloader's state.pkg update && pkg upgrade -y
pkg install wget unzip tar nano
If you’re an Android enthusiast, you’ve probably heard the term bootloader unlock. It’s the gateway to custom ROMs, root access (Magisk), kernels, and full system control.
You might have also seen flashy YouTube thumbnails claiming: “Unlock Any Bootloader Using Termux – No PC Needed!” To unlock your Android bootloader using instead of
But is that true? And more importantly, is it better?
Let’s separate fact from fiction and explore the safest, most effective way to use Termux in the bootloader unlocking process.
Unlocking is just the beginning. Use Termux post-unlock to: Read-Only Properties: The status of the bootloader is
dd or fastboot flash recovery.fastboot flashing lock.getprop ro.boot.flash.locked
Returns 0 = unlocked, 1 = locked.unlock.sh)#!/bin/bash
echo "Waiting for ADB device..."
adb wait-for-device
adb reboot bootloader
echo "Waiting for fastboot..."
fastboot wait-for-device
fastboot flashing unlock
fastboot reboot
echo "Unlock completed. Device will reset."
Run with:
bash unlock.sh
Once your bootloader is unlocked, Termux becomes a mobile DevOps tool. You can:
fastboot flash recovery twrp.imgpython scripts).dd command).