Applicable Models

IMPORTANT: This file is only for use with the models identified. Not all models are sold in all countries.

This information is for the following models:

  • VGN-Z520N
  • VGN-Z530N
  • VGN-Z540
  • VGN-Z540C
  • VGN-Z540N
  • VGN-Z540P
  • VGN-Z550N
  • VGN-Z555DN
  • VGN-Z570AN
  • VGN-Z570FN
  • VGN-Z570N
  • VGN-Z575FN
  • VGN-Z580AN
  • VGN-Z590
  • VGN-Z590C
  • VGN-Z590E
  • VGN-Z590F
  • VGN-Z590N
  • VGN-Z590P
  • VGN-Z590U
  • VGN-Z591U
  • VGN-Z598U

About this download

Benefits and improvements

This utility updates the BIOS to version R2171M3 to resolve an issue where the BitLocker™ key is required on every boot when the USB flash card is disconnected.

System Requirements

Operating Systems

  • Windows® 7
  • Windows® 7 64-bit

File Info

File Name

  • EP0000600082.exe

File Version

  • R2171M3

File Size

  • 6.21 MB

Release Date

  • 11-25-2009

Before You Start


Important Notes

  • WARNING!!: If the machine password and user password are set in the BIOS setup screen, clear both passwords before installing this update. The passwords may be re-set after the update is complete.
  • WARNING!!: If the Microsoft® BitLocker™ security feature is being used, turn it off before installing this update. The BitLocker feature may be turned on after the update is complete.
  • WARNING!!: If the hard disk password is enabled, disable it before installing this update. The hard disk password may be re-enable after the update is complete.
  • 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!
  • During the installation of this update:
    • Do not turn the computer off.
    • Do not allow the computer to enter Standby or Hibernation states.
    • Do not start other programs.
    • Do not connect any peripherals.
  • During the installation of this file, 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 that you print out these instructions for use as a reference during the installation process.

Download & Install


Download and Installation Instructions

  1. 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!
  2. 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.
  3. Download the EP0000600082.exe file to a temporary or download directory (please note this directory for reference).
  4. Go to the directory where the file was downloaded and double-click the EP0000600082.exe file to begin the installation.
  5. At the "User Account Control" window, click "Yes".
  6. At the "BIOS Update" screen, click "Next".
  7. At the "License Agreement" dialog, read the agreement, then, if you agree, click "I Agree" to continue with the installation.
  8. At the "Warning" screen, read and follow the on-screen instructions, then, click "OK" to continue.
  9. At the "VAIO® BIOS Update Tool" screen, verify that the version to be installed is R2171M3 and then click "Update".
  10. At the "WBFLASH" dialog box, click "OK" to confirm that the system BIOS will be updated.
  11. At the "BIOS Update successfully completed" dialog box, click "OK" to shutdown the computer.
  12. After the computer shuts down, wait for 30 seconds, then power on the computer.

After the computer restarts, the installation of the BIOS Update is complete.