Applicable Models

This information is for the following models:
  • VGC-LM26T
  • VGC-LT28G
  • VGC-LM28G
  • VGC-LM26T
  • VGC-LT28G
  • VGC-LM28G

About this download

This program will upgrade BIOS to Ver.R1081W5 and resolve the following symptom.
1. Intel GFX brightness setting gets lost sometimes when system restarts.

Available Downloads:
BIOS Upgrade Program Version R1081W5
File name: EP0000153285.exe
File size:  1.10 MB (1,155,992 bytes)

File Info

File Name

  • To install BIOS Update Program Ver.R1081W5

File Version

  • R1081W5

File Size

  • 1.1MB

Release Date

  • 2008-05-09

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 EP0000153285.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 R1081W5.