1. Download the PH-A43F00C02A104US.EXE file to a temporary or download directory (please note this directory for reference).
2. Go to the directory where the file was downloaded and double-click the PH-A43F00C02A104US.EXE file to begin the installation.
3. At the "BIOS R0043F0 BIOS Update Utility for Microsoft Windows 2000 and XP" box, click Next.
4. At "License Agreement" screen, if you agree, click I Agree. Please wait while the update extracts the necessary files for the update.
5. At the "Phoenix WinPhlash for VAIO" box, click Browse.
6. At the "Specify the New BIOS File" box, double click the R0043F0.WPH file. The text box below "Specify new BIOS file:" should display R0043F0.WPH.
7. Click "FlashBIOS" to begin the BIOS update.
8. At the "Phoenix WinPhlash for VAIO" Warning box, confirm that:
   • All other programs are closed,
   • All peripheral devices are disconnected, and
   • The AC Adapter is connected to the notebook.
   Then, click OK. Please wait while the utility updates the BIOS.
9. At the "System BIOS was successfully updated" screen, click Shutdown.
10. After the system shuts down, wait for a few seconds, and then turn on the computer.

After the computer restarts, the installation of the BIOS update utility is complete.

This utility will update the system BIOS to resolve an issue where the notebook turns on without pressing the power button.

• During the installation of this update, be sure that you are logged in as the Administrator or as a user with Administrative rights.
• To ensure that no other program interferes with the installation, save all work and close all other programs. The Taskbar should be clear of applications before proceeding.
• It is highly recommended to print out these instructions as a reference during the installation process.