How to Install and use Sony Xperia Flash Tool. Before use this flash tool, make sure your Sony Xperia Boot loader is Unlocked. You can read How to Unlock Sony Xperia Boot Loader Download the Flash tool for Xperia devices http://developer.sonymobile.com/downloads/tool/flash-tool-for-xperia-devices/ Unzip the file on the computer Run Emma.exe. During the installation, make sure you remember the • Read More »