How to Run ADB and Fastboot in Termux Without Root

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Introduction

Android Debug Bridge (ADB) and Fastboot are essential tools for Android developers and power users, enabling device debugging, bootloader unlocking, and system modifications. Traditionally, these tools require a rooted device or a computer, but Termux—a Linux terminal emulator for Android—now allows users to execute ADB and Fastboot commands directly on a non-rooted device. This guide explores how to leverage Termux for advanced Android operations without root access.

Learning Objectives

  • Set up ADB and Fastboot in Termux on a non-rooted Android device.
  • Execute basic ADB commands to manage apps, debug, or modify system settings.
  • Use Fastboot to unlock bootloaders, flash ROMs, or root another Android device.

1. Installing Termux and Dependencies

Command:

pkg update && pkg install android-tools -y

Step-by-Step Guide:

  1. Install Termux from the Google Play Store or F-Droid.
  2. Open Termux and run the above command to update packages and install android-tools.

3. Verify installation with:

adb --version 
fastboot --version

2. Enabling USB Debugging on Your Android Device

Command:

adb devices

Step-by-Step Guide:

  1. On your Android device, go to Settings > About Phone and tap Build Number 7 times to enable Developer Options.
  2. Navigate to Developer Options and enable USB Debugging.
  3. Connect the device via USB and run `adb devices` in Termux.
  4. Accept the USB debugging prompt on your device.

3. Unlocking the Bootloader Using Fastboot

Command:

fastboot oem unlock

Step-by-Step Guide:

1. Reboot your device into Fastboot mode:

adb reboot bootloader

2. Execute the unlock command (warning: this wipes data).

3. Confirm on your device’s screen.

4. Removing Bloatware with ADB

Command:

adb shell pm uninstall --user 0 com.bloatware.package

Step-by-Step Guide:

1. List installed packages:

adb shell pm list packages

2. Identify bloatware and uninstall it (replace `com.bloatware.package` with the actual package name).

5. Flashing a Custom ROM via Fastboot

Command:

fastboot flash system rom.zip

Step-by-Step Guide:

  1. Download a compatible ROM and place it in Termux’s home directory.
  2. Boot into Fastboot mode and flash the ROM: 
    fastboot flash system rom.zip 
fastboot reboot

6. Rooting Another Android Device

Command:

fastboot flash boot magisk_patched.img

Step-by-Step Guide:

1. Patch your device’s boot image using Magisk.

2. Flash the patched image via Fastboot.

  1. Reboot and install the Magisk app to verify root access.

What Undercode Say

  • Key Takeaway 1: Termux democratizes advanced Android modifications by eliminating the need for a computer or root access.
  • Key Takeaway 2: Misuse of ADB/Fastboot can brick devices—always backup data and verify commands.

This method bridges the gap for users in resource-constrained environments, enabling device customization and debugging without traditional barriers. As Android security evolves, expect Termux-based workflows to become mainstream for developers and hobbyists alike.

IT/Security Reporter URL:

Reported By: Lukasstefanko Termux – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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