1. fwsd12.zip Driver
2. README.txt File Contents

README.txt Driver File Contents (fwsd12.zip)

            ThinkPad Solid State Drive Firmware Update Utility
           ====================================================

This utility will examine your system configuration and detect all Solid
State Drives installed.  It will then check the firmware revision of the
drive and judge whether your PC requires a firmware update or not.
If required, it will prompt you to run the appropriate firmware update
program for your drive.

Note)
  This Utility support following AHCI systems or their follow-on products 
  having native SATA interface.
  (Other interface such as USB is not supported)
 
-	ThinkPad T540p/W540
-	ThinkPad T431s/T440/T440p/T440s
-	ThinkPad X230s/X240/X240s
-	ThinkPad L440/L540
-	ThinkPad S431/S531/S440/S540
-	ThinkPad Edge E431/E531/E440/E540
-	ThinkPad Edge S1-Yoga

  This utility in this version does not support following RAID system
  (Next version will support)

-	ThinkPad W540 with RAID

==== Important Notice ====

A) After completing a firmware update, the Solid State Drives will not
   properly function until you shut down and reboot PC.
   Before executing a drive firmware update, be sure of following;
 
  - Close all the applications besides of the Firmware Update Utility.
  - Verify that the AC power cord is connected to outlet and adapter
    cable is connected to PC firmly.
  - Make sure that a charged battery pack is installed in PC.
  - Do not power off, remove a drive during an update.  
    Otherwise your drive may become damaged.

B) This utility contains several executable files. 
   DO NOT RUN THESE PROGRAMS except FWWINSD.EXE.
   Running these programs other than FWWINSD.EXE could ruin your 
   Solid State Drive.


==== Update Procedure ====

  1. Download Firmware Update Utility ZIP file from Lenovo Web site and
     save it on your desktop.

  2. Extract Firmware Update Utility ZIP file. 

  3. Execute "fwwinsd.exe" in the folder, then a utility window will open.

  4. The detected drive(s) will be listed in the utility window.
     If a detected drive requires an update, it will be shown
     with * mark on the left.  Select the target drive for firmware
     update, then press "Start Update" button on the window.
     If no drive is detected, or a detected drive does not require
     a firmware update, you cannot continue executing firmware update.
     Press "Cancel" button to exit the utility.

  5. A warning message will appear on the window.
     When you are ready to start firmware update, press "OK" button.

  6. A confirmation window will appear on the screen.
     Press "Yes" button to continue.

  7. After a successful firmware update, "Firmware update is
     SUCCESSFUL" message will appear on the screen. Press "OK" button.

  8. On "Shutdown Required" message window, press "Yes" button to
     shutdown and reboot PC.


==== Supported Environment ====

 OS: Each edition of Windows 7(32bit/64bit) or 8(64bit)

 PC: Folling ThinkPad or ThinkPad Edge supporting AHCI systems
-	ThinkPad T540p/W540
-	ThinkPad T431s/T440/T440p/T440s
-	ThinkPad X230s/X240/X240s
-	ThinkPad L440/L540
-	ThinkPad S431/S531/S440/S540
-	ThinkPad Edge E431/E531/E440/E540
-	ThinkPad Edge S1-Yoga

 Drive: Following Solid State Drive

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Model               Firmware

[ Intel ]
SSDSC2BW*A3L        LF1i  

[ SanDisk ]
SSD U110*           U21A001

[ LiteOn ]
LSC-128M6S          DC72205 
LSC-256M6S          1C85204
LSS-16L6G           DS42202
LSS-24L6G           DSR2206


[ Samsung ]
MZ7TD*HAFV-000L7    DXT06L6Q