Open Termux on the host device and run these commands to install the necessary tools: : pkg update && pkg upgrade Install wget and API tools : pkg install wget termux-api
Toggle on . Note: If this option is missing or grayed out, your carrier may have permanently locked the bootloader. Step 2: Install Termux & Dependencies on the Host Phone
: A secondary Android phone with the Termux app installed.
With Termux configured, connect the hardware infrastructure: Plug the into the Host Device.
Look at the screen of your target device. It will display a warning warning you about security risks. Use the physical Volume Keys to highlight "Unlock the bootloader" and press the Power Button to select it. unlock bootloader using termux hot
Termux alone cannot "hot unlock" any bootloader from 2018 or later. This is by design for security.
Only install android-tools from the official Termux repositories. Avoid cloning unverified GitHub scripts promising "one-click unlocks," as they can contain malware designed to steal device data or hard-brick your hardware.
An Android phone with Termux installed. This device does not need to be rooted.
Unlocking your Android device's bootloader is the gateway to complete device ownership. It allows you to flash custom ROMs, install custom recoveries like TWRP, and gain root access. While this process traditionally requires a desktop computer, you can actually complete the entire process using a second Android device via an OTG cable and . Open Termux on the host device and run
Modern Samsung devices do not use Fastboot mode. Instead, they use "Download Mode." To unlock a Samsung bootloader, you must turn off the phone, hold both Volume keys while plugging it into a PC/Host phone, and follow the long-press volume prompt on the screen. Termux commands are not used here. Finalizing and Verification
Unlocking the bootloader using Termux can be a convenient option for advanced users. However, it requires careful attention to the steps and potential risks involved.
If you get this message, your OTG cable might be faulty, or USB Debugging wasn't properly allowed.
: This guide is for educational purposes only . Unlocking your bootloader will: Use the physical Volume Keys to highlight "Unlock
: For Xiaomi/Poco devices, you must also add your account under Mi Unlock Status Android Open Source Project Step 2: Setup Termux on the Host Device
Some devices have vulnerabilities in their bootloader that allow unlocking via a dialer code or a system command—no fastboot required. Termux can execute these commands if you have root access if the OEM left a backdoor.
Unlocking your Android phone's bootloader opens the door to root access, custom ROMs, and custom recoveries. Traditionally, this process requires a computer with ADB and Fastboot installed. However, you can bypass the need for a PC entirely. By using Termux—a powerful terminal emulator for Android—and an OTG cable, you can unlock your bootloader using a second Android device.
: Users execute commands like fastboot flashing unlock or fastboot oem unlock through the Termux terminal to trigger the unlock process. Specific "Hot" Use Cases
The target device will restart into a static screen (Fastboot mode).