How To install Firmware Sony Xperia S LT26 

1. Download the Flash tool for Xperia devices.
2. Unzip the file you downloaded and place it somewhere on your computer.
3. In the unzipped folder, run exe. During the installation, make sure you remember the installation path:
   1. Default path in Windows 64 bit is: “C:Program Files (x86)Sony MobileEmma”
   2. Default path in Windows 32 bit is: “C:Program FilesSony MobileEmma”
4. Copy the Customization.ini file. You find it in the Flash_tool_for_Xperia_X.zip.
5. Paste the Customization.ini file into the installation folder. The installation folder is the folder namedEmma in the installation path examples on point 3.1 and 3.2 above.
6. ClickStart > All programs > Sony Mobile > Emma (if you used the default installation path from step 3 above) to start the flash tool