Flash custom recovery images (like CWM) and Busybox to prepare for custom ROMs. How to Use Flashtool for Flashing
Understanding Flashtool 0.6.9.1: A Legacy Guide for Sony Xperia Customization Flashtool 0.6.9.1.epubl
Check the unlock status of your device's bootloader. Flash custom recovery images (like CWM) and Busybox