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With the right preparation, the proper tools, and careful execution, you'll be running custom ROMs, enjoying root access, and truly owning your device—all without ever touching a computer.
One popular approach involves:
For Qualcomm (Snapdragon) devices:
pkg install android-tools -y
On your host Android device (the one that will run Termux), download and install: unlock bootloader using termux hot
You don't need a PC. Two phones + Termux = mobile unlocking station. This works perfectly because Phone B's Termux instance stays alive and communicates over USB.
Go to Settings > Developer Options and enable OEM Unlocking .
Features like Google Pay, banking apps, and high-definition Netflix streaming (Widevine L1) may fail security checks (SafetyNet / Play Integrity) once the bootloader is unlocked. You will need to configure root masking tools later to restore this functionality.
You cannot unlock these devices strictly via Termux fastboot. They require an authorized Mi Account linked to the device via settings and a proprietary wait period managed through Xiaomi’s official unlocking tools. With the right preparation, the proper tools, and
The ability to unlock a bootloader using only Termux represents a significant democratization of Android customization. No longer are power users forced to rely on Windows PCs and proprietary tools—a second Android device and the right software can accomplish the same goals.
Open Termux on the host phone and run these commands to install the necessary tools: : pkg update && pkg upgrade Install API and Git : pkg install termux-api git
All unlocking tools are provided "as-is" without warranty. As one developer's disclaimer states, "The developer is not responsible for any damage caused by improper usage". You assume full responsibility for any issues that arise.
Unlocking an Android bootloader via represents a modern shift in device modification, allowing users to perform deep-system tasks typically reserved for PCs using only another mobile device . By leveraging an OTG connection and specific terminal tools, you can bypass the need for a computer to gain full control over your device's software. The Philosophy of PC-Free Customization This works perfectly because Phone B's Termux instance
:
These brands use the standard commands listed above without requiring external codes.
Historically, the "tethered" nature of Android modding meant you needed a desktop environment to execute fastboot commands. Using Termux as a host transforms a secondary Android phone into a portable workstation. This method is particularly popular for , Redmi , and Poco devices, which often require specific tokens and waiting periods that can now be managed through mobile-based scripts. Core Requirements for the Process