Downgrade Sony Xperia S LT26i To Android 2.3 Gingerbread 6.0.A.3.75 or 6.0.A.3.73 Firmware

How to downgrade Sony Xperia S LT26i to Android 2.3 Gingerbread 6.0.A.3.75 or 6.0.A.3.73 firmware manually? Yes now its possible with flashtool. This method we can’t use the Sony update service or PC companion applications. To apply this downgrade process to your Sony Xperia S, you don’t need unlock the bootloader or root the device.

Flashtool can install Windows, Mac and Linux computers, but i have only a Windows PC, so that I only tested it on that PC.  After the downgrade you will lose all the ICS applications and your internal memory files and data. So make sure that you have a latest backup.

Warning!

Installing firmware with flashtool may void the warranty. I have no clear idea about this situation. If you need to remain your warranty, it better submit your Xperia S to the service center for install gingerbread.


 
Requirements. 

  • Charge minimum 50%.
  • Backup and sync internal memory.

Downloads.




How to downgrade Sony Xperia S LT26i to Android 2.3 Gingerbread 6.0.A.3.75 or 6.0.A.3.73 firmware.

  • Install flashtool in your computer. 
  • Go to flashtool installed directory “drivers” folder (C:Flashtooldrivers) and run the “Flashtool-drivers.exe” file and install Xperia S drivers, flashmode and fastboot drivers.
  • If the downloaded firmware file is a compressed one, extract it until you receive “.ftf” file.
  • Copy that file to the flashtool installed directory firmware folder (C:Flashtoolfirmwares).
  • Run the flashtool as an administrator.
  • Power off the Sony Xperia S.
  • Click its “Thunder” icon, like following screenshot. 

  • In the mode selector tick “flashmode”. 
  • Now in the “Firmware selection” window choose the correct firmware file.
  • Don’t change the right side options, leave them as it is. 
  • To install the android 2.3 gingerbread firmware click “OK” button.

  • Now press and hold the “Volume Down” key and same time connect the phone to the PC via USB cable.
  • Most of the time, now you can see a popup window promote “Disconnect phone from the PC and press and hold back key,….“. Ignore that message and wist for a few seconds. 
  • Now you can see the installation progress at the bottom of the flashtool main menu.
  • When it displays “Finished” disconnect phone from the PC and power on.
  • First boot takes few minutes, its normal.

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