1. Download the R0205Z0.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 R0205Z0.EXE to begin the installation.
3. At the "BIOS Version R0205Z0 for PCG-Z505R & RX - Welcome" box, click Continue. An "Unpacking..." box, a "Setup" box, and then a DOS box will appear as the setup files are installed. Once the setup files are installed, the boxes will close automatically.
4. At the "BIOS Version R0205Z0 Upgrade Utility" screen, click Next.
5. At the "Copying Files" screen, insert a formatted bootable floppy disk in the disk drive (A:), and then click Next. Please wait as the files are copied to the floppy disk.
6. At the "Finished Copying Files" screen, verify that "Yes, I want to restart my computer now" is selected.
7. Leave the floppy disk in the drive and click Finish to restart the notebook. The notebook will boot from the floppy disk and run the BIOS update utility.
8. When prompted by the instruction on the screen, press any key to continue. Please wait as the update takes approximately two minutes. After the update is complete, the computer will turn off.
9. Eject the floppy disk from the drive.
   NOTE: It is recommended that you keep the disk in a safe place in case it becomes necessary to reinstall the BIOS update.
10. Turn on the computer system.

After the computer restarts, installation of the BIOS Upgrade Utility is complete.

This utility updates the computer system BIOS and resolves the issue where the computer may stop responding when a USB Hub or other USB device is attached to the computer while it restarts.

• WARNING!!: 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 BIOS update, please connect a USB floppy disk drive to the computer and make sure that the floppy disk drive is the only USB device connected to the computer's USB port.
• After installing this BIOS update, it may be necessary to remove and then reinstall any hardware that did not ship with the notebook. For assistance reinstalling the hardware, please consult the product documentation or contact the product manufacturer.
• To install this upgrade, you will need to create a bootable floppy disk to receive the BIOS update files. To prepare a floppy disk for use with this update, please refer to the Create a Bootable Floppy Disk procedure.
• 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.