For years, unlocking the bootloader of an Android device has been the "holy grail" for enthusiasts wanting to flash custom ROMs, gain root access, or install advanced mods. Traditionally, this process required a PC, USB cables, and platform tools like ADB and Fastboot. But what if you could do it directly from your phone? Enter Termux—a powerful terminal emulator for Android.
The phrase "unlock bootloader using termux better" has become a trending search query among tech-savvy users who want a cable-free, efficient, and portable method. But is it really "better"? And if so, how do you do it safely?
In this 2,500+ word guide, we will break down:
If target is rooted, enable network ADB:
# On target device (via Termux on target or terminal emulator)
su
setprop service.adb.tcp.port 5555
stop adbd
start adbd
On host:
adb connect <target_ip>:5555
Limitation: Fastboot over network is impossible. Only for initial setup.
| Risk | Mitigation |
|------|-------------|
| Bricking device | Ensure battery >50%, use original cable, never interrupt fastboot write |
| Warranty void | Check OEM policy – reversible on some devices (relock bootloader) |
| Data loss | Backup via adb backup or manual copy before unlock |
| Malware risk | Only run trusted fastboot commands; verify binary SHA256 |
Once fastboot recognizes the device:
fastboot flashing unlock
(For older devices: fastboot oem unlock)
Use volume keys on your phone to confirm. Your device will wipe data and reboot.
Termux operates in a sandboxed environment. To modify system partitions (which unlocking the bootloader entails), you must break out of this sandbox.
Here’s where Termux becomes genuinely useful and better than a PC in some scenarios:
| Task | With Termux | Better than PC? | |------|-------------|----------------| | Checking unlock status | ✅ Yes | Convenient | | Backing up device data | ✅ Yes | Wireless | | Installing dependencies for unlock tools | ✅ Yes | On-device | | Sending fastboot commands | ❌ No (needs OTG + special kernel) | Rarely | | Unlocking via OEM’s official app | ✅ Sometimes (Xiaomi, OnePlus) | Yes |
If you see “Unlock bootloader using Termux” clickbait, close it.
But if you want to prepare smarter, backup faster, and automate better – Termux is your best friend before you ever plug into a PC.
Real unlock still needs:
Use Termux to master the process, not to skip the protocol.
Have you successfully used Termux in your bootloader unlocking journey? Share your experience below (without dangerous one-liners, please).
You can unlock an Android bootloader using Termux on another Android phone, completely eliminating the need for a PC. This method relies on the android-tools package executed on a host phone connected to the target phone via an OTG cable. 🛠️ Requirements & Setup unlock bootloader using termux better
To execute this process successfully, gather the following hardware and software elements:
Host Device: An Android phone running the Termux terminal app. Target Device: The Android phone you want to unlock. OTG Adapter & Data Cable: To physically bridge both phones.
Termux App: Download the latest builds exclusively from Termux on GitHub or F-Droid (avoid the outdated Play Store version).
Termux:API: Required to allow Termux to safely utilize your phone's native USB hardware. 📲 Step 1: Prepare the Target Phone
You must first instruct the target phone to accept external bootloader modifications.
Enable Developer Options: Go to Settings > About Phone and tap Build Number 7 times.
Toggle Settings: Go to System > Developer Options and enable both USB Debugging and OEM Unlocking.
Boot to Fastboot: Power off the device, then hold the Volume Down + Power buttons until the Fastboot bunny or screen appears. ⌨️ Step 2: Configure Termux on the Host Phone
Open Termux on your separate host device and run the following terminal commands sequentially to establish the environment: Update packages: pkg update && pkg upgrade Install tools: pkg install android-tools Install USB API: pkg install termux-api
Note for non-rooted host devices: Stock Termux cannot communicate with raw USB ports on unrooted phones. If your host phone is not rooted, you must install custom wrappers like termux-adb on GitHub to properly bridge the standard commands to the hardware. 🔓 Step 3: Run the Unlock Commands
Physically plug the OTG adapter into the host device and run the cable to the target device (currently sitting in Fastboot mode). Inside the Termux prompt, run the following scripts: Check Connection: fastboot devices Use code with caution. Copied to clipboard
(If you see a string of numbers followed by "fastboot", your physical connection is solid.) Unlock Command (Standard): fastboot oem unlock Use code with caution. Copied to clipboard Unlock Command (Alternative for newer devices): fastboot flashing unlock Use code with caution. Copied to clipboard
⚠️ Critical Warning: Successfully executing an unlock protocol triggers a compulsory hard reset. Back up all critical files on the target device prior to running these commands, or they will be permanently erased.
Unlock Bootloader of any Device using PC or Android. - GitHub
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 For years, unlocking the bootloader of an Android
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
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
Unlocking an Android bootloader via Termux allows you to perform the procedure using another Android device instead of a PC. This "better" method leverages mobile-to-mobile connectivity via USB OTG, making it highly portable. Prerequisites
Two Android Devices: A "Host" device (to run commands) and a "Target" device (to be unlocked). USB OTG Adapter: Required to connect the two devices. If target is rooted, enable network ADB: #
Data Cable: A high-quality USB cable to link the Target to the OTG-equipped Host.
Applications: Install Termux and Termux:API on the Host device. Preparation of Target Device
Enable Developer Options: Go to Settings > About Phone and tap Build Number seven times.
Enable OEM Unlocking: In Developer Options, toggle OEM Unlocking to ON.
Enable USB Debugging: In the same menu, toggle USB Debugging to ON.
Xiaomi Specifics: For Xiaomi/Redmi devices, you must also bind your Mi Account in the Mi Unlock status menu and may have to wait for a mandatory period (7–30 days). Step-by-Step Execution via Termux
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 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