Unlock Bootloader Using Termux Better -

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

1. Locate your unlock file (e.g., unlocked_boot.img).
2. Flash it directly to the boot partition (replace [partition_path] with your finding from Step 3):

   dd if=unlocked_boot.img of=/dev/block/by-name/[partition_path]
   

3. Reboot the device:

   reboot
   

Connect the two phones via USB-C. On Phone A, grant USB accessory permission when prompted. unlock bootloader using termux better

4. Connecting Target Device Without PC

4.1 OTG Method (Recommended)

1. Connect target device to host via OTG cable.
2. On target, set USB mode to File Transfer or PTP (ADB works over both).
3. On host Termux, as root (if needed for USB permissions):