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      BIOS Update Utility for Windows 8 (32-bit, 64-bit), 7 (32-bit, 64-bit), Vista (32-bit, 64-bit), XP - ThinkPad W520

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      Name
      Operating System
      Version
      Released
      Download Now
      Checksum Data
      BIOS Update Utility
      exe
      6.5 MB
      Windows 7 (32-bit)
      Windows 7 (64-bit)
      Windows 8 (32-bit)
      Windows 8 (64-bit)
      Windows Vista (32-Bit)
      Windows Vista (64-Bit)
      Windows XP (32-bit)
      Windows XP (64-bit)
      1.43
      11/7/2016
      README for BIOS Update Utility

      26 KB
      Windows 7 (32-bit)
      Windows 7 (64-bit)
      Windows 8 (32-bit)
      Windows 8 (64-bit)
      Windows Vista (32-Bit)
      Windows Vista (64-Bit)
      Windows XP (32-bit)
      Windows XP (64-bit)
      1.43
      11/7/2016

      This package updates the UEFI BIOS (including system program and Embedded Controller program) stored in the ThinkPad computer to fix problems, add new functions, or expand functions as noted below.

      Use the link below to obtain the BIOS in other file formats:

      Supported ThinkPad system

      • W520

      Supported Operating Systems

      • Microsoft Windows 8 32-bit, 64-bit
      • Microsoft Windows 7 32-bit, 64-bit
      • Microsoft Windows Vista 32-bit, 64-bit
      • Microsoft Windows XP Professional SP3

      Summary of Changes

      Where:

      • [Important] Important update
      • (New) New function or enhancement
      • (Fix) Correction to existing function

      Version 1.43
      UEFI: 1.43 / ECP: 1.36

      • [Important] Security fix addresses LEN-8324 System Management Mode (SMM) BIOS Vulnerability.
      • (Note)
        If the UEFI BIOS has been updated to version 1.43 or higher, it is no longer able to roll back to the version before 1.43 for security improvement.
      • (Fix) Fixed an issue where the brightness control might not work on Windows XP.

      Additional Information

      Please refer to the README file (content in English) for the following:

      • Installation Instructions
      • Determining Which Version is Installed
      • Complete list of summary of changes
      • Known limitations (if any)

      The following versions of UEFI BIOS and ECP (Embedded Controller Program) have been released to date.

      Package UEFI BIOS ECP Release
      1.43 1.43 (8BET63WW) 1.36 (8AHT42WW)
      1.36 (8XHT42WW)
      Current release
      1.42 1.42 (8BET62WW) 1.36 (8AHT42WW)
      1.36 (8XHT42WW)
      8buj21us.exe
      8buj21us.txt
      1.41 1.41 (8BET61WW) 
      1.36 (8AHT42WW) 8buj20us.exe
      8buj20us.txt
      1.40 1.40 (8BET60WW) 
      1.36 (8AHT42WW) 8buj19us.exe
      8buj19us.txt
      1.39-1.35 1.39 (8BET59WW) 1.35 (8AHT41WW)
      1.35 (8XHT41WW)
      8buj18us.exe
      8buj18us.txt
      1.39-1.35 1.39 (8BET59WW) 1.35 (8AHT41WW)
      1.35 (8XHT41WW)
      8buj18us.exe
      8buj18us.txt
      1.39 1.39 (8BUJ17US) 1.34 (8AHT40WW)
      1.34 (8XHT40WW)
      8buj17us.exe
      8buj17us.txt
      1.38
      1.38 (8BET58WW) 
      1.34 (8AHT40WW)
      1.34 (8XHT40WW)
      8buj16us.exe
      8buj16us.txt
      1.37 1.37 (8BET57WW) 1.33 (8AHT39WW)
      1.33 (8XHT39WW)
      8buj15us.exe
      8buj15us.txt
      1.36 1.36 (8BET56WW) 1.20 (8AHT38WW)
      1.20 (8XHT38WW)
      8buj14us.exe
      8buj14us.txt
      1.35 1.35 (8BET55WW) 1.20 (8AHT38WW)
      1.20 (8XHT38WW)
      8buj13us.exe
      8buj13us.txt
      1.34 1.34 (8BET54WW) 1.19 (8AHT37WW)
      1.19 (8XHT37WW)
      8buj12us.exe
      8buj12us.txt
      1.33 1.33 (8BET53WW) 1.19 (8AHT37WW)
      1.19 (8XHT37WW)
      8buj11us.exe
      8buj11us.txt
      1.32 1.32 (8BET52WW) 1.18 (8AHT36WW)
      1.18 (8XHT36WW)
      8buj10us.exe
      8buj10us.txt
      1.30 1.30 (8BET50WW) 1.17 (8AHT35WW)
      1.17 (8XHT35WW)
      8buj09us.exe
      8buj09us.txt
      1.28 1.28 (8BET48WW) 1.17 (8AHT35WW)
      1.17 (8XHT35WW)
      8buj08us.exe
      8buj08us.txt
      1.26 1.26 (8BET46WW) 1.16 (8AHT34WW)
      1.16 (8XHT34WW)
      8buj06us.exe
      8buj06us.txt
      1.25 1.25 (8BET45WW) 1.15 (8AHT33WW)
      1.15 (8XHT33WW)
      8buj05us.exe
      8buj05us.txt
      1.25 1.25 (8BET44WW) 1.14 (8AHT32WW) 8buj04us.exe
      8buj04us.txt
      1.22 1.22 (8BET42WW) 1.13 (8AHT31WW) 8buj03us.exe
      8buj03us.txt
      1.21 1.21 (8BET41WW) 1.09 (8AHT27WW) 8buj02us.exe
      8buj02us.txt
      1.06 1.06 (8BET30WW) 1.06 (8AHT24WW) 8buj01us.exe
      8buj01us.txt

       


      • Alias ID: MIGR-77033, MIGR-77033-KR
      • Document ID:DS018884
      • Last Updated :09 Nov 2016
      • © 2015 Lenovo