ThinkPad T43                                              May 31, 2006
Embedded Controller Program Service Diskette

Embedded Controller Program : 1.06 (1YHT29WW)
Diskette Version            : 1.06
======================================================================

Notes:
-------
- This version of Embedded Controller Program will only work with BIOS
  Version 1.27 (or higher). Please obtain the additional package, BIOS
  Version 1.27 (or higher), and update the BIOS in the system with it.
- If you need to update the BIOS as well as the Embedded Controller
  Program, update BIOS first.
- This program is language independent and can be used with any
  language system.


What This Diskette Does
-----------------------
This Embedded Controller Program Service Diskette updates the Embedded
Controller Program (H8 controller firmware) stored in the ThinkPad
system to fix problems, add new functions, or expand functions as
noted below.

This release supports the following systems:

  - ThinkPad T43, T43p

To determine if you should update the Embedded Controller Program,
refer to the Summary of Changes section.

To update the Embedded Controller Program, refer to the Updating
Embedded Controller Program section.


Released Versions
-----------------
 Where:
 Diskette version - Program version (Internal ID)   Description

 1.01 - 1.01 (1YHT24WW)   Initial release
 1.03 - 1.03 (1YHT26WW)   A problem fix
 1.04 - 1.04 (1YHT27WW)   A problem fix
 1.05 - 1.05 (1YHT28WW)   A function enhancement and problem fix
 1.06 - 1.06 (1YHT29WW)   A problem fix

Summary of Changes
------------------
 Where: <n.nn - x.xx (bbbbbbbb)>
           n.nn     : Diskette version
           x.xx     : Embedded Controller Program version
           bbbbbbbb : Embedded Controller Program internal ID
                      which is for administrator purpose.
        (New) New Function or Enhancement
        (Fix) Correction to existing function

<1.01 - 1.01 (1YHT24WW)>
Note:
  This version of Embedded Controller Program will only work with BIOS
  Version 1.00b or later.

 - (New) Support for ThinkPad T43.

<1.03 - 1.03 (1YHT26WW)>
Note:
  This version of Embedded Controller Program will only work with BIOS
  Version 1.00b or later.

 - (Fix) Adjustment for CPU thermal sensor error.

<1.04 (1YHT27WW)>
Note:
  This version of Embedded Controller Program will only work with BIOS
  Version 1.00b or later.

 - (Fix) CPU thermal sensor adjustment.

<1.05 (1YHT28WW)>
Note:
  This version of Embedded Controller Program will only work with BIOS
  Version 1.25 or later.

 - (Fix) Fix for battery information query procesiing.
 - (New) Support "ThinkPad NumLock" control.
         Note: "ThinkPad NumLock" menu item is available in the BIOS
               Setup Utility only when the BIOS is also updated to
               version 1.25 (1YET60WW) or later.

<1.06 (1YHT29WW)>
Note:
  This version of Embedded Controller Program will only work with BIOS
  Version 1.27 or later.

 - (Fix) Previously released Embedded Controller 1.05(1YHT28WW) may
         cause a spontaneous wrong key input when you key input with an
         external PS/2 type keyboard.
           - Numeric characters (2, 4, 6 and 8) will be inserted
             internittently during cursor move with cursor keys.
           - The keyboard behaves as if the shift lock is on until a
             shift key is pressed. 
             - You can only type Uppercase characters. (Some keys seem 
               to ignore keystrokes, because the shift cases are not defined) 
             - Multiple selection with cursor keys
             - Numeric keypad defaults to cursor keys 


Updating Embedded Controller Program
------------------------------------
Notes:
- Remove the Power-on password prior to updating the Embedded
  Controller Program in RDM (Remote Deployment Manager) environment or
  similar environment.
- You need an AC adapter and a charged battery pack to update the
  Embedded Controller Program.
- If your computer is attached to any kind of docking station or port
  replicator, turn off the computer and detach it before proceeding.
- Make sure the Embedded Controller Program Service Diskette is
  write-protected.

 1. Print these instructions or display on another computer.
 2. Firmly connect the AC adapter to the computer.
 3. Insert the write protected Embedded Controller Program Service
    Diskette into the diskette drive and turn on the computer.
 4. Select Read this first from the menu and carefully read the
    information that appears.
 5. Press the Esc key to return to the menu.
 6. Select Update Embedded Controller Program and follow the
    instruction on the screen.

    Note:
    If you are updating the Embedded Controller Program through the
    USB external diskette drive, it will take quite a long time to
    complete reading the Embedded Controller Program file, but it is
    normal. Continue the update.

    Attention:
    Do not turn off, suspend the computer or remove the diskette until
    the update has been completed. IF YOU TURN OFF OR SUSPEND THE
    COMPUTER WHILE THE UPDATE IS STILL IN PROGRESS, THE SYSTEM
    BOARD MAY HAVE TO BE REPLACED.

 After the update has been completed, the system is automatically
 turned off.

 Do the following to make sure the Embedded Controller Program is
 updated correctly.

 7. Make sure there is no diskette in the diskette drive, then turn on
    the computer.
 8. While the "To interrupt normal startup, press the blue Access IBM
    button" message is displayed at the lower-left area of the screen,
    press the Access IBM button.
 9. Double-click Start setup utility.
    The BIOS Setup Utility menu will be displayed.
    If you have set a supervisor password, the BIOS Setup Utility
    menu appears after you enters the password.
10. Verify the Embedded Controller Version.
11. Turn off the computer.


Embedded Controller Program Information
---------------------------------------
Each version of the Embedded Controller Program Update Utility contains the
following Embedded Controller Program.  Also the supported BIOS versions are
shown below.  The versions of Embedded Controller Program and BIOS can be
viewed by running ThinkPad Configurator from your operating system and then
selecting the System Information button, or by entering BIOS Setup Utility.


 Diskette   Embedded Controller   BIOS Version
 Version    Program Version
            (Internal ID)
 --------   -------------------   -----------------
 1.01       1.01 (1YHT24WW)       1.00b or later
 1.03       1.03 (1YHT26WW)       1.00b or later
 1.04       1.04 (1YHT27WW)       1.00b or later
 1.05       1.05 (1YHT28WW)       1.25  or later
 1.06       1.06 (1YHT29WW)       1.27  or later


To enter the BIOS Setup Utility:
 1. Turn off the computer.
 2. Turn on the computer.
 3. While the "To interrupt normal startup, press the blue Access IBM
    button" message is displayed at the lower-left area of the screen,
    press the Access IBM button.
 4. Double-click Start setup utility.
    The BIOS Setup Utility menu will be displayed.
    If a password prompt appears, type the correct password.
 5. Check Embedded Controller Version and BIOS Version.
 6. Turn off the computer.


Trademarks
----------
* ThinkPad is a registered trademark of Lenovo in the United States.

* IBM is a registered trademarks of IBM Corporation.
* Intel and Pentium are registered trademarks of Intel Corporation.
* Microsoft, Windows and Windows NT are registered trademarks of
  Microsoft Corporation.

Other company, product, and service names may be registered trademarks,
trademarks or service marks of others.