Summary of changes

Installation instructions

Determining which version is installed

Version 70HT28WW (1.05)
Note: This version of Embedded Controller Program will only work with BIOS Version 1.24 or higher.

• (Fix) Previously released the Embedded Controller version 1.04 (70HT27WW) may spontaneously cause wrong key input while using an external PS/2 keyboard.
• Numeric characters (2, 4, 6 and 8) may be inserted while pressing the cursor keys.
• Shift key operation is done without pressing the shift key.
• Only upper case characters are typed.
• Multiple selections with the cursor keys
• Numeric keypad may work as the cursor keys.

Version 70HT27WW (1.04)
Note: This version of Embedded Controller Program will only work with BIOS Version 1.24 (or higher).

• (New) Support for ThinkPad NumLock.
  Refer to the description of version 1.24 in the Readme file
  of the BIOS of ThinkPad R52 (Machine Types 1858, 1859, 1860,
  1861, 1862, 1863, 1958) and ThinkPad T43 (Machine Types 1871, 1872,
  1873, 1874, 1875, 1876).
  

Version 70HT26WW (1.03)
Note: This version of Embedded Controller Program will only work with BIOS Version 1.01 (or higher).

• (New) Improvement of thermal control process.
• (New) Improvement of resume process from suspend mode with the secondary battery.

• (New) (Initial release) Support for:
  • ThinkPad R52 (Machine Types 1858, 1859, 1860, 1861, 1862, 1863, 1958)
  • ThinkPad T43 (Machine Types 1871, 1872, 1873, 1874, 1875, 1876)
    
    

• 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.
• If a USB Diskette Drive is attached to your computer, turn off the computer and detach it before proceeding.
• Remove the Power-on password prior to updating the Embedded Controller Program in RDM (Remote Deployment Manager) environment or similar environment.

1. Print these instructions or display on another computer.
2. Firmly connect the AC adapter to the computer.
3. Start a supported version of Windows on the target computer.
4. Make the temporary directory on the hard disk 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\70HJ04US.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 computer 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.
    
    
12. Turn on the computer.
13. 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.
14. Select Start setup utility. If you have set a supervisor password, the BIOS Setup Utility menu appears after you enters the password.
15. Verify the Embedded Controller Version.
    
    

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\70HJ04US.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.
   
   

1. Make sure there is no diskette in the diskette drive, then 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 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.