Unlock Bootloader Using Termux Better

Clarification: You cannot run fastboot oem unlock from within a normal Android OS (even with Termux) because fastboot commands require the device to be in bootloader mode. However, you can use Termux to:

But for the first unlock, you still need to use the device’s hardware keys or adb reboot bootloader from Termux with USB debugging enabled. That’s the trick: Termux with adb and fastboot packages can interface with the bootloader once the phone restarts.

Before any unlock attempt, backup your device’s unique partitions. Termux + root (or using dd via tsu) is perfect for this.

# Get root
tsu
Modern devices (Google Pixel, newer Samsungs, Xiaomis) utilize an anti-rollback and authorization mechanism.
This is the #1 complaint. The "better" solution: Use termux-usb to attach the bootloader interface.
termux-usb -r

Then re-run fastboot.
| Item | Specification |
|------|---------------|
| Host device | Android 10+, rooted, with USB OTG support, 3GB+ RAM |
| Target device | Android (any), bootloader unlockable (e.g., Pixel, OnePlus, Xiaomi) |
| Cable | USB-C to USB-C or USB-A to USB-C (OTG adapter) |
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:


From ADB (target connected via OTG):
adb reboot bootloader

Or manually: Power + Volume Down.