Use the links below to obtain the BIOS and Embedded Controller files in other file formats:

• Embedded Controller Diskette
• BIOS Non-Diskette
• BIOS Diskette

I. Summary of changes
II. Installation instructions
III. Determining which version is installed

Version 1.08 (1QHT23WW)
Note: This version of Embedded Controller Program will only work with BIOS Version 3.01 (or higher).

• (New) Enhance safety with an unsupported battery.

Notes:

• To determine if you should update the Embedded Controller Program, refer to the Summary of changes section.
• 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 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.
• Before using this Embedded Controller Program Update Utility with Windows 98 Second Edition, Lenovo recommends applying the Windows 98 Second Edition Shutdown Supplement from the Microsoft Web site Knowledge Base Article ID Q239887.
• Remove the Power-on password prior to updating the Embedded Controller Program in RDM (Remote Deployment Manager) environment or similar environment.

Use the ThinkPad Software Installer version 3.01.0503 (or higher).
The ThinkPad Software Installer will check both installed program in your ThinkPad and Lenovo Web site. Then download and update the program automatically if a newer version is available.
Refer to the ThinkPad Software Installer package for details.

1. Print these instructions or display on another system.
2. Firmly connect the AC adapter to the system.
3. Start Windows 98 or start Windows NT 4.0/2000/XP and logon with administrative privileges on the target system.
4. Make a 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\1QHJ08US.EXE) and then press the Enter key
   Note: For unattended update, specify the file name with options "-s -a -s". (e.g. C:\Temp\1QHJ08US.EXE -s -a -s) The Embedded Controller Program is updated without any user interaction.
8. Follow the instructions on the screen.
   Depending on the operating system configuration, restarting the operating system and rerunning the Embedded Controller Program update utility may be required. In this case, the following message will appear: "DeviceIoControl() returns 2 Please restart your operating system and execute the BIOS or Embedded Controller update utility again."
   Windows shutting down automatically and 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.

Each version of the Embedded Controller Program Update Utility contains the following Embedded Controller Program. Also the supported BIOS versions are shown below. The version of Embedded Controller Program can be viewed by entering the BIOS Setup Utility.

To enter the BIOS Setup Utility:

1. 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 area of the screen, press the F1 key. The BIOS Setup Utility menu will be displayed. If a password prompt appears, type the correct password.
4. Check Embedded Controller Version and BIOS Version.
5. Turn off the system.