In order to unlock the Bootloader you will need to setup Windows Device Drivers and get an unlock code from Sony.1. How to get an unlock code from Sony.To be able to unlock your Xperia 1 VII, prepare it by following these steps:Go into Settings > About phone and tap seven times on Build number to enable developer options.From Settings, go into Developer options and enable OEM unlocking. To do this, make sure your device is updated to the latest...Read more