This package updates the UEFI BIOS (including system program and Embedded Controller program) stored in the ThinkPad computer to fix problems, add new functions, or expand functions as noted below.

Use the link below to obtain the BIOS in other file formats:

• BIOS Bootable CD

	Supported ThinkPad Systems
	Supported Operating Systems
	Summary of Changes
	Notes
	Updating the UEFI BIOS
	Initializing UEFI BIOS
	Determining which version is installed
	Known limitations
	Memory Map information

• ThinkPad Twist S230u

• Microsoft Windows 8 64-bit

Where:

• UEFI: UEFI BIOS version
• ECP: Embedded Controller Program version
• [Important] Important update
• (New) New function or enhancement
• (Fix) Correction to existing function

Version 1.55
 UEFI: 1.55 / ECP: 1.55

• (Fix) Fixed an issue where the mouse cursor drifts in Tablet mode.

Version 1.53
 UEFI: 1.53 / ECP: 1.53

• (New) Add hotkey Fn+I as Insert key.
• (Fix) Fix Fn key can't turn on display if the display automatically off in windows7/8.
• (Fix) Fix lenovo logo shown twice when boot to Windows8.
• (Fix) Fix Wrong Wattage displayed in Power Status of power management.

Version 1.52
 UEFI: 1.52 / ECP: 1.52

• (New) Enabled AES support.
• (Fix) Fixed Windows7 black screen at Windows Memory Diagnostic with 2 DRAM.

Version 1.51
 UEFI: 1.51 / ECP: 1.51

• (Fix) Fixed an issue where Windows 7 activation might fail.

Version 1.50
 UEFI: 1.50 / ECP: 1.50

• (New) Added support for new 10-digit part number and serial number format.
  Note: To support the new format, rolling back to the version before 1.50 cannot be done.
• (Fix) Fixed the F10 Diagnostic has no function at power on.

Note:
Please refer to the README file under the "File details" section for a complete list of changes fixed by this driver update.

• If the BIOS has been updated to version 1.50 or higher, it is no longer able to roll back to the version before 1.50 because the new 10-digit part number and serial number format was once installed. The old BIOS with the 7-digit part number and serial number format can not handle the 10-digit format.

Notes:

• Due to Security improvement, once updated to the version GDET37WW(1.07) or above,
  it is prevented to downgrade to GDET36WW(1.06) or older version.
• If the BIOS has been updated to version 1.50 or higher, it is no longer able to roll back to the version before 1.50 because the new 10-digit part number
  and serial number format was once installed. The old BIOS with the 7-digit part number and serial number format can not handle the 10-digit format.
• If your computer runs satisfactorily now, it may not be necessary to update the UEFI BIOS. To determine if you should update the UEFI BIOS, refer to the Version information section.
• You need an AC adapter and a charged battery pack.
• Remove the Power-on password prior to updating the UEFI BIOS in the Remote Deployment Manager environments.

Attention:
Do not turn off or suspend the computer until the update has been completed. IF YOU DO THAT WHILE THE UPDATE IS STILL IN PROGRESS, THE SYSTEM BOARD MAY HAVE TO BE REPLACED.

This section assumes to use Internet Explorer and Windows Explorer.

[Downloading file]

1. Click once on the underlined file name. Once this is done, some pop-up windows will appear.
2. Follow the instructions on the screen.
3. In the window to choose Run or Save, click the Save button.
4. Choose the folder you would like to download the file to and click the Save button. A different window will appear and the download will begin and complete. Once the download has completed, there may or may not be a message stating that the download completed successfully.

[Extracting file]

5. Make sure to be logged on with administrative account on the target computer.
6. Make sure the AC adapter is firmly connected to the target computer.
7. Locate the folder where the file was downloaded.
8. Locate the file that was downloaded and double-click it.
9. Follow the instructions on the screen.
10. In the "Select Destination Location" window, click Next. If you would like to select a different folder, click Browse.
11. In the "Ready to Install" window, click Install. All the necessary files will be extracted to the folder selected in the step 10.

[Updating the UEFI BIOS]

12. Make sure the checkbox next to "Install ..... now" is checked and click Finish.
13. Follow the instructions on the screen.
14. Select Update ThinkPad BIOS and follow the instructions on the screen.
15. After the update has been completed, the program shows a message 'Flash Update has been successfully completed...'. Follow the instructions on the screen to restart the computer.

Finally delete the file saved in Step 4.

Note: This is for system administrators' use only.

1. Refer to the "Manual Update" section, and download and extract the file.
2. In the step 12 of the "Installing files" section, uncheck the checkbox next to "Install ..... now", and then click Finish to cancel installation.
3. At the command line, execute WINUPTP.EXE with the -s option.
   Example: [Path where the files were extracted]\WINUPTP -s

To view the update result, refer to the WINUPTP.log file created at the same directory of the package.

Note:
After initialization you may need to reapply some settings that you had changed previously.

UEFI BIOS Initialization is suggested for some problems. To initialize the UEFI BIOS settings:

1. Turn off the computer.
2. Turn on the computer.
3. While the "To interrupt normal startup, press Enter" message is displayed at the lower-left area of the screen, press the F1 key.
   The ThinkPad Setup menu will be displayed. If a password prompt appears, type the correct password.
4. Press the F9 key to load default configuration.
5. Select Yes.
6. Press the F10 key to save default configuration and exit.
7. Select Yes.
8. Restart the computer.

There are two ways to check the UEFI BIOS version and BIOS ID.

[Windows 8]

1. Click Start, click All Programs or Programs, click Accessories, click
   System Tools and then click System Information.
   - or -
   Click Start, type msinfo32 in the Start Search box and then click msinfo32
   in the Programs list.
2. On the System Information window, make sure System Summary is selected in the left side of the window.
3. Locate the BIOS version/date line in the right side of the window.
   "LENOVO BIOS ID (BIOS version), date" will be shown.

If you are prompted for an administrator password or confirmation, type your password, or click Continue.

[Windows 8]

1. Turn off the computer.
2. Turn on the computer.
3. While the "To interrupt normal startup, press Enter" message is displayed at the lower-left area of the screen, press the F1 key.
   The ThinkPad Setup menu will be displayed. If a password prompt appears, type the correct password.
4. Locate the UEFI BIOS Version line and Embedded Controller Version line. "UEFI BIOS version (BIOS ID)" will be shown on the UEFI BIOS Version line.
5. Turn off the computer.

The following versions of UEFI BIOS and ECP (Embedded Controller Program) have been released to date.

• After backing up a Windows XP system to a hard drive connected to the e-SATA port through Rescue and Recovery, when attempting to restore the backup image from the e-SATA hard drive through Rescue and Recovery, a blue screen error
  occurs. Rescue and Recovery can not access the e-SATA hard drive.

The following conventional memory addresses are reserved by the UEFI BIOS and others.

• C0000-CFFFF : Reserved for Video BIOS
• D0000-D0FFF : Reserved for Option ROM of Ethernet (*a)
• E0000-FFFFF : Reserved for System BIOS

*a: This area will be released in case of Ethernet LAN Option ROM was NOT used at system boot.

The following memory address can be used by the memory manager such as EMM386.

• D0000-DFFFF or D1000-DFFFF (*b)

*b: Memory address will be changed to D1000-DFFFF when Ethernet LAN Option ROM was used at system boot.

Note: Certain addresses in this area will be reserved for optional devices by Operating Systems. The addresses vary and depend on the design of each Operating System.