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      BIOS Update Bootable CD for Windows 8 (32-bit, 64-bit), 7 (32-bit, 64-bit), Vista (32-bit, 64-bit), XP - ThinkPad T420, T420i

      Back#ProductName# - Downloads

      Name
      Operating System
      Version
      Released
      Download Now
      Checksum Data
      BIOS Update Bootable CD
      iso
      37.4 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)
      1.48
      2/2/2016
      README for BIOS Update Bootable CD
      txtreadme
      27.8 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)
      1.48
      2/2/2016

      The BIOS Update CD can boot the computer disregarding the operating systems and update 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.

      Note: Please create the CD/DVD from the ISO image file and install it. The contents of the BIOS Update CD cannot be shown by Windows Explorer.

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

       

      Supported ThinkPad systems

      • T420, T420i

      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:

      • UEFI: UEFI BIOS version
      • ECP: Embedded Controller Program version
      • [Important] Important update
      • (New) New function or enhancement
      • (Fix) Correction to existing function

      Version 1.48
      UEFI: 1.48 / ECP: 1.20

      • [Important] Security fix addresses LEN-2015-002 SMM "Incursion" Attack and some security fixes.
      • (Note) If the UEFI BIOS has been updated to version 1.48 or higher, it is no longer able to roll back to the version before 1.48 for security improvement.
      • (Fix) Fixed an issue where the computer might not enter Startup interrupt menu.

      Additional Information

      Please refer to the README file 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
      1.48  1.48 (83ET78WW)
      1.20 (83HT30WW) 
      1.20 (8WHT30WW)
      Current release
      1.46 1.46 (83ET76WW) 1.20 (83HT30WW)
      1.20 (8WHT30WW)
      83uj28us.iso
      83uj28uc.txt
      1.45 1.45 (83ET74WW) 1.20 (83HT30WW)
      1.20 (8WHT30WW)
      83uj27us.iso
      83uj27uc.txt
      1.44 1.44 (83ET74WW) 1.20 (83HT30WW)
      1.20 (8WHT30WW)
      83uj26us.iso
      83uj26uc.txt
      1.43 1.43 (83UJ25UC) 1.20 (83HT30WW)
      1.20 (8WHT30WW)
      83uj25uc.iso
      83uj25uc.txt
      1.42 1.42 (83UJ24UC) 1.19 (83HT29WW)
      1.19 (8WHT29WW)
      83uj24uc.iso
      83uj24uc.txt
      1.41 1.41 (83UJ23UC) 1.19 (83HT29WW)
      1.19 (8WHT29WW)
      83uj23uc.iso
      83uj23uc.txt
      1.40 1.40 (83ET70WW) 1.19(83HT29WW)
      1.19(8WHT29WW)
      83uj22uc.iso
      83uj22uc.txt
      1.39 1.39 (83ET69WW) 1.18(83HT28WW)
      1.18(8WHT28WW)
      83uj21uc.iso
      83uj21uc.txt
      1.37 1.37 (83ET67WW) 1.11(83HT27WW)
      1.11(8WHT27WW)
      83uj20uc.iso
      83uj20uc.txt
      1.36 1.36 (83ET66WW) 1.11(83HT27WW)
      1.11(8WHT27WW)
      83uj19uc.iso
      83uj19uc.txt
      1.35 1.35 (83ET65WW) 1.11(83HT27WW)
      1.11(8WHT27WW)
      83uj18uc.iso
      83uj18uc.txt
      1.35 1.35 (83ET65WW) 1.11 (83HT27WW)
      1.11 (8WHT27WW)
      83uj17uc.iso
      83uj17uc.txt
      1.33-1.10 1.33 (83ET63WW) 1.10 (83HT26WW)
      1.10 (8WHT26WW)
      83uj16uc.iso
      83uj16uc.txt
      1.33 1.33 (83ET63WW) 1.09 (83HT25WW)
      1.09 (8WHT25WW)
      83uj15uc.iso
      83uj15uc.txt
      1.32 1.32 (83ET62WW) 1.09 (83HT25WW)
      1.09 (8WHT25WW)
      83uj14uc.iso
      83uj14uc.txt
      1.30 1.30 (83ET60WW) 1.08 (83HT24WW)
      1.08 (8WHT24WW)
      83uj12uc.iso
      83uj12uc.txt
      1.29 1.29 (83ET59WW) 1.08 (83HT24WW)
      1.08 (8WHT24WW)
      83uj11uc.iso
      83uj11uc.txt
      1.28 1.28 (83ET58WW) 1.08 (83HT24WW)
      1.08 (8WHT24WW)
      83uj10uc.iso
      83uj10uc.txt
      1.27 1.27 (83ET57WW) 1.08 (83HT24WW)
      1.08 (8WHT24WW)
      83uj09uc.iso
      83uj09uc.txt
      1.26 1.26 (83ET56WW) 1.08 (83HT24WW) 83uj08uc.iso
      83uj08uc.txt
      1.23 1.23 (83ET53WW) 1.07 (83HT23WW) 83uj06uc.iso
      83uj06uc.txt
      1.22 1.22 (83ET52WW) 1.07 (83HT23WW) 83uj05uc.iso
      83uj05uc.txt
      1.15 1.15 (83ET45WW) 1.06 (83HT22WW) 83uj03uc.iso
      83uj03uc.txt

       


      • Alias ID: MIGR-77076, MIGR-77076-KR
      • Document ID:DS018784
      • Last Updated :01 Mar 2016
      • © 2015 Lenovo