This removes carrier customizations without touching the locked modem partition.
Before connecting your phone, install the Sony USB drivers on your PC. This ensures that when the phone enters "Flash Mode," the computer will recognize it immediately. Install the Flash Tool software as well. sony sov33 lock remove ftf top
Open the Xperia Flash Tool. You will be greeted with a user interface. Click on the "Flash" button (usually a lightning bolt icon). sony sov33 lock remove ftf top