1. Download the R0205A1X.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 R0205A1X.EXE file to begin the installation.
3. At the "BIOS R0205A1 Installation Utility - InstallShield Wizard" box, click Next. Several setup boxes will briefly appear as the files are extracted and the computer model is identified. As these processes complete, the boxes will close automatically. The BIOS R0205A1 Setup will launch.
4. At the "Information" box, insert your prepared 3½ bootable floppy disk into the drive (A:).
5. Click OK to begin copying the BIOS installation files onto the bootable floppy disk.
6. At the "BIOS R0205A1 Upgrade" screen, select "Yes, I want to restart my computer now" and then click Finish. Be sure to leave the bootable floppy disk with the BIOS files in the floppy drive. As the computer restarts, it will boot from the floppy disk instead of the hard drive. The PhoenixPhlash Utility will launch. Please wait as the installation of the BIOS will take one to two minutes to complete. Once the installation is complete, the computer will automatically turn off.
7. Eject the bootable BIOS installation disk from the drive.
8. Turn on the computer.

After the computer starts, the installation of the BIOS is complete.

BIOS Update Utility, Revision R0205A1X for the Microsoft® Windows® XP Operating Systems

• Before installing this update, be sure the computer is running from AC power. If the installation of the BIOS is interrupted by power loss, the computer may not operate correctly or at all!
• Before installing this update, you will need to prepare a 3½ bootable floppy disk to receive the installation files. For additional assistance, please see Creating a Bootable Floppy Disk.
• Before installing this or any other Windows XP update, please be sure to read Sony's Installing the Microsoft® Windows® XP Operating Systems document. If the new operating system is not installed or configured correctly, some updates may not install correctly.
• If Windows XP is already installed: 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.