When you have installed the flash tool for Xperia™, you can flash standard Sony software on your unlocked Xperia™ device. Note! When you flash software onto your device,
your user data and content will be erased. Make sure to properly back up all information.
This is how you flash software on your phone:
Computer: Open Emma from the Start menu of your computer.
Connect a USB cable to your computer.
Phone: Turn off your phone.
Connect your phone to the USB cable while holding the flash key (for example Volume down). The flash key varies between models. For a complete key mapping, see the supported phones page.
How to download and install the flash tool
The flash tool for Xperia™ is actually called Emma when you install it in this Beta version, and it runs on all Windows computers. This tool is confirmed working for most markets globally*, with a few exceptions** due to distribution restrictions.
To install the flash tool, follow the steps below:
Download the Flash tool for Xperia devices.
Unzip the file you downloaded and place it somewhere on your computer.
In the unzipped folder, run Emma.exe. During the installation, make sure you remember the installation path:
Default path in Windows 64 bit is: “C:\Program Files (x86)\Sony Mobile\Emma\”
Default path in Windows 32 bit is: “C:\Program Files\Sony Mobile\Emma\”
Copy the Customization.ini file. You find it in the Flash_tool_for_Xperia_X.zip.
Paste the Customization.ini file into the installation folder. The installation folder is the folder named Emma in the installation path examples on point 3.1 and 3.2 above.
Click Start > All programs > Sony Mobile > Emma (if you used the default installation path from step 3 above) to start the flash tool