Click here for instructions and limitations on downloading and creating the diskette.

Summary of changes

Installation instructions

Determining which version is installed

• (Fix) The previously released Embedded Controller version 1.05 (76HT15WW) may spontaneously cause wrong key input when using an external PS/2 type 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

• (New) Support for ThinkPad NumLock.
  Refer to the description of version 1.23 in the Readme file of ThinkPad R52 (Machine Types 1846, 1847, 1848, 1849, 1850, 1870) BIOS.

Version 76HT14WW (1.04)
Note: This version of Embedded Controller Program will only work with BIOS Version 1.02 (or higher).

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

Version 76HT12WW (1.02)
Note: This version of Embedded Controller Program will only work with BIOS Version 1.02 (or higher).

• (New) Improvement of Fan control.
  
  

• 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.
• Make sure the Embedded Controller Program Service Diskette is write-protected.
• 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 system.
2. Firmly connect the AC adapter to the system.
3. Insert the Embedded Controller Program Service Diskette into the diskette drive and turn on the system.
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 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, do the following to make the changes effective.
   
   
7. Make sure there is no diskette in the diskette drive, then turn on the system.
8. 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.
9. Select Start setup utility. If you have set a supervisor password, the BIOS Setup Utility menu appears after you type in the password.
10. Verify the Embedded Controller Version.

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.