Applicable Models

This information is for the following models:
  • VGN-TX46GP
  • VGN-TX47TP
  • VGN-TX36GP
  • VGN-TX47GP
  • VGN-TX46TP
  • VGN-TX37TP
  • VGN-TX37GP
  • VGN-TX47SP
  • VGN-TX36TP
  • VGN-TX46SP
  • VGN-TX36SP
  • VGN-TX37SP

About this download

This program will upgrade BIOS to Ver.R0025N3 and the following improvements are available in this upgrade version.
1. Clock stops sometimes.

Before installing this upgrade Program:
This upgrade program is suitable for Windows Vista Operation System only. Enusre that the Operating System is updated from Windows XP to Windows Vista. If Windows XP is used, users do not need to upgrade this BIOS.

Available Downloads:
BIOS Upgrade Program Version R0025N3 for Windows Vista
File name: PHBSYS-01398003-UN.exe
File size: 1.05 MB (1,103,480 bytes)

File Info

File Name

  • To install BIOS Upgrade Program Version R0025N3 for Windows Vista

File Version

  • R0025N3

File Size

  • 1.05MB

Release Date

  • 2007-12-18

System Requirements

  • Windows Vista SP2 32bit


IMPORTANT: Before proceeding with the upgrade, disconnect all external hardware devices, including PC Cards etc.
Note: Before proceeding, ensure that the VAIO computer is operated using the supplied AC adapter.
Note: Save all data/files and close all running programs.



1. Download the file to a temporary or download directory (Please note this directory for reference later).
2. Go to the directory where the file was downloaded and double-click PHBSYS-01398003-UN.exe.
3. Follow the instructions displayed in the installation wizard.
4. After installation is completed, please restart the computer.
5. Please load default BIOS setting values after updating.

To check if the updating is successful
1. Press F2 while booting and enter BIOS setup.
2. Enter BIOS setup and check that the BIOS Version is R0025N3.