fastboot getvar token # Retrieve device token
fastboot oem unlock
For non-Xiaomi devices, requirements vary. Most brands require:
When retrieving tokens from MTK devices, you may receive 2-3 token segments:
He connected the phone to his laptop — just long enough to share files — and enabled USB debugging. Termux prompted for permissions; he granted them. Next he started adbd in root mode (where supported) through Termux’s limited sudo-like environment, carefully following the script’s steps. The terminal scrolled warnings and device IDs. For a moment nothing happened. Then the device appeared in the list: a small string of hex and letters that meant the bootloader recognized a host. unlock bootloader using termux hot
Allow Termux to interact with your device's internal storage: termux-setup-storage Use code with caution. 3. Install Python and Git
Unlocking the bootloader triggers a factory reset. Back up your photos, contacts, and files first.
Termux often lacks direct access to USB hardware flags. Try running termux-usb -l to check permissions, or use a rooted Host device to grant Termux root terminal privileges by typing su before running your fastboot commands.
Do not download Termux from the Google Play Store, as that version is deprecated. Grab the latest APK from F-Droid or GitHub. fastboot getvar token # Retrieve device token fastboot
A popup may also appear on the host device asking for Termux to access the USB device. Grant this permission. Step 3: Booting the Target Device into Fastboot Mode
Boot back into Fastboot mode using the physical buttons (usually Volume Down + Power) and execute: fastboot format userdata Use code with caution. Then, type fastboot reboot to restart the phone cleanly. Conclusion
termux-usb -l
Unlock Bootloader Using Termux: A Comprehensive Guide (2026) Next he started adbd in root mode (where
Before connecting, you must enable hidden settings on the phone you wish to unlock: About Phone Build Number seven times until "Developer options" is enabled. Navigate to Developer Options USB Debugging OEM Unlocking
A prompt will appear on the Target device asking to allow USB Debugging access. Check "Always allow" and tap .
If adb devices shows your device serial number followed by unauthorized : Unplug and replug the USB cable.
For Modern Devices (Google Pixel, Motorola, OnePlus, Xiaomi): Run the modern universal standard command: fastboot flashing unlock Use code with caution. For Legacy Devices (Older Android versions):
Method B — Using PC (recommended if Termux cannot access USB)