Unlocking your bootloader directly through on another Android device is a popular method for those who don't have a PC. While the process varies slightly by brand, the core method involves using a secondary "host" phone to send commands to the "target" phone via an OTG cable. Essential Requirements Two Android Devices : One host (with Termux) and one target (to be unlocked). OTG Adapter/Cable : To physically connect the two phones. Termux App : Installed on the host device. Data Backup : Unlocking will erase all data on the target device. Step-by-Step Guide 1. Prepare the Target Device About Phone Build Number 7 times to enable Developer Options Developer Options USB Debugging OEM Unlocking For Xiaomi/Redmi/Poco : You must also add your Mi Account under Mi Unlock Status
and may need to wait for a mandatory period (often 168 hours). 2. Setup Termux on the Host Device
Open Termux and run the following commands to install the necessary tools: Update packages: pkg update && pkg upgrade Install ADB & Fastboot: pkg install android-tools 3. Connect and Execute Connect the devices using the OTG adapter (host side) and a USB cable (target side). Boot the target device into Fastboot Mode (usually by holding Power + Volume Down during startup). On the host Termux, check connection: fastboot devices Use code with caution. Copied to clipboard If a serial number appears, the connection is successful. Run the unlock command: fastboot flashing unlock Use code with caution. Copied to clipboard Note: Some older devices may use fastboot oem unlock 4. Confirm on Target Device
📱 Unlock Bootloader via Termux (No PC Method) Unlocking your bootloader is the first step toward installing custom ROMs or rooting your device. Using Termux makes this process "better" because it removes the need for a laptop, especially for brands like Xiaomi. Prerequisites
Two Android Devices: One "Host" device (running Termux) and one "Target" device (to be unlocked). OTG Cable/Adapter: To connect the two phones.
Enable USB Debugging: On the target device, go to Settings > Developer Options and enable USB Debugging. Step-by-Step Instructions
Install Termux: Download it from F-Droid for the latest updates.
Install Fastboot: Open Termux and run:pkg update && pkg upgradepkg install tur-repopkg install android-tools
Connect Devices: Use the OTG cable to link the Host (Termux) to the Target device.
Grant Permissions: On the Target device, tap "Always allow" when the USB Debugging prompt appears. Reboot to Bootloader: In Termux, type:adb reboot bootloader
Unlock Command: Once the Target is in Fastboot mode, run:fastboot flashing unlock (or fastboot oem unlock for older devices). 📢 Social Media Post Idea
Headline: Ditch the PC! 💻🚫 Unlock your Bootloader using ONLY your phone!
Want to flash a custom ROM but don't have a computer? You can use Termux to turn your secondary Android phone into a powerful flashing tool. Why this is better: ✅ Portable: Do it anywhere, anytime. ✅ Fast: No more struggling with Windows drivers.
✅ PC-Free: Great for Xiaomi, Pixel, and OnePlus users who want total control on the go.
⚠️ Warning: Unlocking your bootloader will wipe all your data and may disable banking apps or high-res streaming. Always back up first!
#Termux #AndroidModding #BootloaderUnlock #NoPC #RootAndroid #TechTips
Unlocking your bootloader using Termux is a popular "no-PC" method that essentially turns one Android phone into a "mini-computer" to send commands to another. This process requires a secondary Android device and an OTG cable. 🛠️ What You’ll Need
Host Device: The phone you'll use to run commands (must have Termux installed). Target Device: The phone you want to unlock. OTG Adapter: To connect the two phones via USB.
Termux App: Use the version from F-Droid or the official Termux Wiki for the latest updates. 📝 Step-by-Step Guide Prepare the Target Device
Go to Settings > About Phone and tap Build Number 7 times to enable Developer Options.
In Developer Options, enable USB Debugging and OEM Unlocking.
Xiaomi users: You must also bind your Mi Account in the "Mi Unlock Status" settings. Set Up Termux on the Host Device
Open Termux and update your packages by running:pkg update && pkg upgrade
Install the necessary ADB and Fastboot tools:pkg install root-repopkg install android-tools Connect and Verify
Boot the Target Device into Fastboot Mode (usually by holding Power + Volume Down while restarting). Connect the two phones using the OTG adapter and USB cable.
In Termux, check if the device is recognized:fastboot devices Execute the Unlock Command unlock bootloader using termux better
For most devices, use the standard command:fastboot oem unlock If that doesn't work, try:fastboot flashing unlock
Xiaomi Devices: These often require a specific token generated by tools like the MI Unlock Tool or community scripts in Termux. ⚠️ Critical Warnings
Lock and unlock the bootloader | Android Open Source Project
Dismiss Got it. On this page. Get into the bootloader. Unlock the bootloader. Lock the bootloader. Set lock and unlock properties. Android Open Source Project
Unlock Bootloader of any Device using PC or Android. - GitHub
Warning: Unlocking your bootloader can potentially brick your device and void its warranty. Proceed with caution and at your own risk.
Unlocking Bootloader using Termux: A Step-by-Step Guide
Unlocking your device's bootloader is the first step towards gaining root access and customizing your Android device. While the traditional method of unlocking the bootloader involves using a computer and a specific software, you can also do it using Termux, a popular Android terminal emulator. In this guide, we'll walk you through the process of unlocking your bootloader using Termux.
Requirements:
Step 1: Prepare your device
Step 2: Install Termux and required packages
pkg updatepkg install -y git android-toolsStep 3: Configure your device for bootloader unlocking
adb devices on your computer to ensure your device is listed.Step 4: Unlock the bootloader using Termux
adb reboot bootloaderfastboot oem unlockStep 5: Verify bootloader status
fastboot rebootfastboot getvar unlockedunlocked: yesPost-unlock procedures
fastboot oem lock in Termux.Conclusion
Unlocking your bootloader using Termux provides a convenient and flexible way to gain control over your Android device. However, be aware of the risks involved and proceed with caution. Always backup your data and understand that unlocking your bootloader may void your device's warranty.
Additional resources
To unlock a bootloader using Termux, you are essentially turning your Android phone into a Linux workstation to flash another device. This method is incredibly useful if you don't have access to a PC but have a secondary Android phone and an OTG adapter.
How to Unlock Android Bootloader Using Termux (No PC Required)
Unlocking your bootloader is the first step toward full device ownership. It allows you to install custom recoveries like TWRP, flash custom ROMs, and gain root access. While this is traditionally done on a PC, you can achieve the same results using Termux on a secondary Android device. ⚠️ Prerequisite Warning
Data Wipe: Unlocking the bootloader will factory reset your device. Back up everything.
Warranty: This process usually voids your manufacturer warranty.
Risk: If done incorrectly, you risk "bricking" your device. Proceed with caution. 🛠️ Requirements Before starting, ensure you have the following: The Target Phone: The device you want to unlock. The Host Phone: The device with Termux installed. OTG Adapter: To connect the two phones. USB Cable: High-quality data cable.
Developer Options: Enabled on the target phone (Tap "Build Number" 7 times). Android device with a compatible bootloader (e
USB Debugging & OEM Unlocking: Both toggled ON in the target phone's Developer Options. 📥 Step 1: Set Up Termux on the Host Phone
First, we need to install the necessary ADB and Fastboot tools inside the Termux environment.
Download Termux (preferably from F-Droid for the latest updates). Open Termux and run the following commands one by one: pkg update && pkg upgrade pkg install python git Use code with caution. Copied to clipboard Install the ADB/Fastboot repository: pkg install android-tools Use code with caution. Copied to clipboard Verify the installation: fastboot --version Use code with caution. Copied to clipboard 🔗 Step 2: Connect the Devices Connect the OTG adapter to the Host Phone. Plug the USB cable into the OTG and the Target Phone.
On the Host Phone, Termux may trigger a pop-up asking for USB permission. Grant it. ⚡ Step 3: Boot into Fastboot Mode
Now, we need to move the target phone into the state where it can accept unlock commands. In Termux, type: adb devices Use code with caution. Copied to clipboard
Check the target phone for a "Allow USB Debugging?" prompt and tap Always Allow. Reboot the target phone into Fastboot mode: adb reboot bootloader Use code with caution. Copied to clipboard
The target phone should now show a "Fastboot" or "Bootloader" screen. 🔓 Step 4: The Unlock Command
Once the target device is in Fastboot mode, verify the connection: fastboot devices Use code with caution. Copied to clipboard
If you see a serial number, you are ready. Use the universal unlock command: fastboot flashing unlock Use code with caution. Copied to clipboard Note: For older devices, use fastboot oem unlock. ✅ Step 5: Confirm on Target Device
Look at the screen of the Target Phone. It will ask for confirmation.
Use the Volume Keys to highlight "Yes" or "Unlock Bootloader." Press the Power Button to select it. The device will wipe all data and reboot. 🏁 Conclusion
Congratulations! Your bootloader is now unlocked. You can now proceed to flash custom partitions or root your device directly from your phone.
🚀 Pro Tip: Keep the android-tools package updated in Termux to ensure compatibility with the latest Android versions.
Unlocking your bootloader using Termux allows you to bypass the need for a PC by using one Android device to unlock another. This "phone-to-phone" method leverages the Android Debug Bridge (ADB) and Fastboot tools directly on your mobile device. ⚠️ Critical Warnings
Data Wipe: Unlocking the bootloader will erase all user data on the target device. Back up everything first.
Security Risk: It disables many security features and may break apps that require device integrity, such as banking or Netflix.
Warranty: This typically voids your manufacturer's warranty. Phase 1: Prepare the Target Device
Before using Termux, you must prepare the phone you want to unlock.
Enable Developer Options: Go to Settings > About Phone and tap Build Number 7 times.
Toggle Settings: In Settings > System > Developer Options, enable: OEM Unlocking USB Debugging Manufacturer Specifics:
For Xiaomi/Redmi/Poco, you must bind your Mi account in the "Mi Unlock Status" section and often wait for a mandatory period (usually 168 hours). Phase 2: Set Up Termux on the Host Device
The "Host" device is the phone that will send commands to the target phone.
Unlock Bootloader of any Device using PC or Android. - GitHub
How To do using a Windows Computer? (Windows-Android) ... MOB = Which Device will be used for unlocking bootloader. Download ADB & GitHub Unlock Android Bootloader on Linux: The Step-by-Step Guide
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 Step 1: Prepare your device
: 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
Unlocking a bootloader using refers to a "PC-less" method where one Android device is used to unlock another. While highly convenient, this method is typically reserved for advanced users and specific device brands like Xiaomi or Google Pixel. Core Requirements
Before attempting an unlock through Termux, you must ensure the target device is prepared: Developer Options
: Enable "OEM Unlocking" and "USB Debugging" within the device settings. Physical Connection : You need a USB OTG (On-The-Go) adapter
to connect the "host" phone (running Termux) to the "target" phone (the one being unlocked). Fastboot Tools : Termux must have the android-tools package installed to execute The Process The general workflow involves these steps: Install Tools : In Termux, run pkg install android-tools Enter Fastboot Mode
: Boot the target device into fastboot mode (usually by holding Power + Volume Down). Establish Connection
: Connect the devices via OTG. Grant Termux USB permissions when prompted. Execute Unlock fastboot flashing unlock fastboot oem unlock for older models).
: Follow on-screen prompts on the target device to confirm the unlock. Android Open Source Project Critical Risks & Trade-offs Total Data Loss : Unlocking the bootloader wipes all user data by performing a factory reset. Security Vulnerabilities
: An unlocked bootloader allows unauthorized software to run, making the device more susceptible to physical and remote attacks. Warranty & Features : Many manufacturers, such as
, state that unlocking may void warranties. Additionally, some security-sensitive apps (banking, Netflix) may stop working correctly. GrapheneOS Discussion Forum
Unlocking your bootloader using Termux is a popular "PC-less" method that essentially turns a second Android phone into a replacement for a computer. This method uses ADB and Fastboot
within the Termux environment to send commands to the target device via a USB OTG connection. Prerequisites Two Android Phones
: One is the "Host" (running Termux) and the other is the "Target" (device to be unlocked). USB OTG Cable/Adapter : To connect the two phones. Data Backup : Unlocking the bootloader wipes all user data and may void your warranty. Developer Settings : On the target device, enable USB Debugging OEM Unlocking Settings > Developer Options Step-by-Step Guide 1. Prepare Termux on the Host Device Download and install Termux from
for the most up-to-date version. Open Termux and run the following commands to install the necessary tools:
pkg update && pkg upgrade pkg install termux-api pkg install tur-repo pkg install termux-adb Use code with caution. Copied to clipboard Note: Using a tool like termux-adb
is often better than standard packages as it is specifically optimized for Android-to-Android connections. 2. Connect the Devices
Connect the Host (with OTG adapter) to the Target device via USB cable.
Ensure the Target device prompts you to "Allow USB Debugging" and select "Always allow". 3. Reboot to Bootloader/Fastboot
In the Termux terminal on the Host device, verify the connection and reboot the target: termux-adb devices termux-adb reboot bootloader Use code with caution. Copied to clipboard Wait for the target device to enter Fastboot/Download mode. 4. Execute the Unlock Command
Once the target is in Fastboot mode, run the unlocking command: termux-fastboot devices termux-fastboot flashing unlock Use code with caution. Copied to clipboard
pkg install android-tools tsu wget git nano
For Xiaomi (Mi Unlock), OnePlus, or Motorola:
termux-open-url https://www.mi.com/global/unlock
Termux alone cannot unlock a locked bootloader on 99% of modern devices.
Why? Because bootloader unlocking requires:
Termux runs inside Android’s userspace – it doesn’t have direct hardware access to the bootloader partition. Anyone claiming a single Termux command can unlock any bootloader is either misinformed or misleading you.