Visit the official manufacturer developer website and locate the bootloader unlock page. Provide your phone's IMEI number (dial *#06# to find it). The site generates a free unique string token.
: Download the official SDK Platform-Tools on your computer.
Enter your IMEI number on Sony's official developer site to receive a free unlock token. Troubleshooting Common Fastboot Errors unlock bootloader command free
This means your PC lacks the correct Fastboot drivers. Open Device Manager on Windows, locate the device with the yellow warning triangle, and update it using the Android Bootloader Interface drivers.
You should now see your serial number followed by "fastboot". Visit the official manufacturer developer website and locate
While the commands above are the "standard," some brands require one extra (but still free) step: Straightforward. Use the commands above.
While various paid software suites and malicious tools online claim to bypass restriction blocks for a fee, . The official Android development ecosystem provides all the necessary utilities completely free of charge. What is a Bootloader and Why Unlock It? : Download the official SDK Platform-Tools on your computer
However, manufacturers have the right to lock their devices. While you always own the hardware, some argue you are licensing the software. Unlocking breaks the terms of service for some banking and payment apps.
(Fastboot command)
adb reboot bootloader
If you see your device serial number followed by "device," you are connected. If it says "unauthorized," look at your phone and approve the RSA key fingerprint.