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

NameOperating SystemVersionReleasedDownload
BIOS Update Utility
83uj28us.exe
5.46 MB		Windows 7 32bit,
Windows 7 64bit,
Windows 8 32bit,
Windows 8 64bit,
Windows Vista 32bit,
Windows Vista 64bit,
Windows XP		1.4617 Jul 2013Download
README for BIOS Update Utility
83uj28us.txt
25.03 KB		Windows 7 32bit,
Windows 7 64bit,
Windows 8 32bit,
Windows 8 64bit,
Windows Vista 32bit,
Windows Vista 64bit,
Windows XP		1.4617 Jul 2013Download

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 systems


  • T420, T420i

Supported Operating Systems


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

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