Embedded Controller Program (Non-Diskette) - ThinkPad T43 and T43p (2668, 2669, 2678, 2679, 2686, 2687)

	Summary of changes
	Installation instructions
	Determining which version is installed

• (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 intermittently 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

Click here for a complete list of changes fixed by this driver update.

• 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 system is attached to any kind of docking station or port replicator, turn off the system and detach it before proceeding.
• If a USB Diskette Drive is attached to your system, turn off the system and detach it before proceeding.

1. Print these instructions or display on another system.
2. Firmly connect the AC adapter to the system.
3. Start Windows NT 4.0/2000/XP and logon with administrative privileges on the target computer.
4. Make the temporary directory on the hard drive (for instance, C:\Temp)
5. Download the Embedded Controller Program Update Utility from the web site and store the file into the temporary directory.
6. Click the Start button, then click Run.
7. In the Open dialogue box, specify the utility filename with the full path name where you stored Embedded Controller Program Update Utility. (E.g. C:\Temp\1YHJ06US.EXE)) Then press the Enter key.
8. Follow the instructions on the screen.
   Depending on the operating system configuration, restarting the operating system and rerunning this Embedded Controller Program update utility may be required. In this case, the following message will appear on the screen. "DeviceIoControl() returns 2 Please restart your operating system and execute the BIOS or Embedded Controller update utility again."
   Windows will shut down automatically and the ThinkPad Embedded Controller Program Update Utility screen appears.
   
9. Select Read this first from the menu and carefully read the information that appears.
10. Press the Esc key to return to the menu.
11. Select Update Embedded Controller Program and follow the instruction on the screen.
    
    Attention: Do not turn off or suspend the system until the update has been completed. If you turn off or suspend the system 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.
    Follow the instruction in the section Determining which version is installed to make sure the Embedded Controller Program is updated correctly.
    

1. Do the same instructions above from step 1 to step 6.
2. Specify filename with the full path name where you stored Embedded Controller Program Update Utility with options -s -a -s. (E.g. C:\Temp\1YHJ04US.EXE -s -a -s)
3. Then press the Enter key. Windows will shut down automatically and the system BIOS program will be updated without any user interaction.
4. Follow the instruction in the section Determining which version is installed to make sure the Embedded Controller Program is updated correctly.
   

1. Make sure there is no diskette in the diskette drive, then turn off the system.
2. Turn on the system.
3. While the To interrupt normal startup, press the blue Access IBM button message is displayed at the lower left of the screen, press the Access IBM button.
4. Select Start setup utility. If you have set a supervisor password, the BIOS Setup Utility menu appears after you type in the password. The embedded controller version is displayed on the first screen of the BIOS Setup Utility.