Yep, I know… it’s old. But still useful for someone (like me).
Download Flashtool 0.6.9.1 (Windows)
Latest version? Go to http://www.flashtool.net/
What is Flashtool?
FlashTool is one of the most powerful tools for Sony Xperia devices and has been around since the Xperia X10 days. The utility has been updated to version number 0.9.18.1, which brings a very useful new feature – the ability to download the latest firmware files for your Sony Xperia device.
Once you have downloaded the latest version, simply head over to the Update Checker part of the tool to select and download your firmware. In theory, this negates the need to use two tools (XperiFirm and FlashTool) to create a FTF firmware file as detailed in our recent guide. — http://www.xperiablog.net/