Visit the Sony Developer World Unlock Page and select your device model. Enter your IMEI (found by dialing *#06# ) to receive a unique unlock code.
If it says , you can proceed. If it says No , your device (often a carrier-branded model) cannot be unlocked using official tools. Step-by-Step Unlock Process sony unlock tool download
If your goal is to install , root your device, or access the kernel, you need the official bootloader unlock process. Sony is one of the most developer-friendly manufacturers and provides its own infrastructure for this. Visit the Sony Developer World Unlock Page and
If you own an Xperia and have ever looked at its sleek hardware and thought, "I wish this ran pure Android," official Sony Bootloader Unlock If it says No , your device (often
You must have ADB (Android Debug Bridge) and Fastboot drivers installed on your PC.