BIOS Update Utility for Windows 8 (32-bit, 64-bit), 7 (32-bit, 64-bit), Vista (32-bit, 64-bit), XP - ThinkPad T420, T420i
Available Drivers
BIOS Update Utility for Windows 8 (32-bit, 64-bit), 7 (32-bit, 64-bit), Vista (32-bit, 64-bit), XP - ThinkPad T420, T420i
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)
BIOS Update Utility
83uj33us.exe
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)
README for BIOS Update Utility
83uj33us.txt
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)
Description
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.
Compatible Devices
Supported ThinkPad Systems
- T420, T420i
Compatible 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
What's More
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.
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 1.52
UEFI: 1.52 / ECP: 1.20
- [Important] Security fix addresses LEN-22133 Speculative Execution Side Channel Variants 4 and 3a (CVE-2018-3639, CVE-2018-3640). Refer to Lenovo’s Security Advisory page for additional information. (https://support.lenovo.com/product_security/home)
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 |
|---|---|---|---|
| 1.52 | 1.52 (83ET82WW) | 1.20 (83HT30WW) 1.20 (8WHT30WW) |
Current release |
| 1.51 | 1.51 (83ET81WW) | 1.20 (83HT30WW) 1.20 (8WHT30WW) |
83uj32us.exe 83uj32us.txt |
| 1.50 | 1.50 (83ET80WW) | 1.20 (83HT30WW) 1.20 (8WHT30WW) |
83uj31us.exe 83uj31us.txt |
| 1.49 | 1.49 (83ET79WW) | 1.20 (83HT30WW) 1.20 (8WHT30WW) |
83uj30us.exe 83uj30us.txt |
| 1.48 | 1.48 (83ET78WW) | 1.20 (83HT30WW) 1.20 (8WHT30WW) |
83uj29us.exe 83uj29us.txt |
| 1.46 | 1.46 (83ET76WW) | 1.20 (83HT30WW) 1.20 (8WHT30WW) |
83uj28us.exe 83uj28us.txt |
| 1.45 | 1.45 (83ET75WW) | 1.20 (83HT30WW) 1.20 (8WHT30WW) |
83uj27us.exe 83uj27us.txt |
| 1.44 | 1.44 (83ET74WW) | 1.20 (83HT30WW) 1.20 (8WHT30WW) |
83uj26us.exe 83uj26us.txt |
| 1.43 | 1.43 (83UJ25US) | 1.20 (83HT30WW) 1.20 (8WHT30WW) |
83uj25us.exe 83uj25us.txt |
| 1.42 | 1.42 (83UJ24US) | 1.19 (83HT29WW) 1.19 (8WHT29WW) |
83uj24us.exe 83uj24us.txt |
| 1.41 | 1.41 (83UJ23US) | 1.19 (83HT29WW) 1.19 (8WHT29WW) |
83uj23us.exe 83uj23us.txt |
| 1.40 | 1.40 (83ET70WW) | 1.19 (83HT29WW) 1.19 (8WHT29WW) |
83uj22us.exe 83uj22us.txt |
| 1.39 | 1.39 (83ET69WW) | 1.18 (83HT28WW) 1.18 (8WHT28WW) |
83uj21us.exe 83uj21us.txt |
| 1.37 | 1.37 (83ET67WW) | 1.11 (83HT27WW) 1.11 (8WHT27WW) |
83uj20us.exe 83uj20us.txt |
| 1.36 | 1.36 (83ET66WW) | 1.11 (83HT27WW) 1.11 (8WHT27WW) |
83uj19us.exe 83uj19us.txt |
| 1.35 | 1.35 (83ET65WW) | 1.11 (83HT27WW) 1.11 (8WHT27WW) |
83uj18us.exe 83uj18us.txt |
| 1.34 | 1.34 (83ET64WW) | 1.11 (83HT27WW) 1.11 (8WHT27WW) |
83uj17us.exe 83uj17us.txt |
| 1.33-1.10 | 1.33 (83ET63WW) | 1.10 (83HT26WW) 1.10 (8WHT26WW) |
83uj16us.exe 83uj16us.txt |
| 1.33 | 1.33 (83ET63WW) | 1.09 (83HT25WW) 1.09 (8WHT25WW) |
83uj15us.exe 83uj15us.txt |
| 1.32 | 1.32 (83ET62WW) | 1.09 (83HT25WW) 1.09 (8WHT25WW) |
83uj14us.exe 83uj14us.txt |
| 1.30 | 1.30 (83ET60WW) | 1.08 (83HT24WW) 1.08 (8WHT24WW) |
83uj12us.exe 83uj12us.txt |
| 1.29 | 1.29 (83ET59WW) | 1.08 (83HT24WW) 1.08 (8WHT24WW) |
83uj11us.exe 83uj11us.txt |
| 1.28 | 1.28 (83ET58WW) | 1.08 (83HT24WW) 1.08 (8WHT24WW) |
83uj10us.exe 83uj10us.txt |
| 1.27 | 1.27 (83ET57WW) | 1.08 (83HT24WW) 1.08 (8WHT24WW) |
83uj09us.exe 83uj09us.txt |
| 1.26 | 1.26 (83ET56WW) | 1.08 (83HT24WW) | 83uj08us.exe 83uj08us.txt |
| 1.23 | 1.23 (83ET53WW) | 1.07 (83HT23WW) | 83uj06us.exe 83uj06us.txt |
| 1.22 | 1.22 (83ET52WW) | 1.07 (83HT23WW) | 83uj05us.exe 83uj05us.txt |
| 1.15 | 1.15 (83ET45WW) | 1.06 (83HT22WW) | 83uj03us.exe 83uj03us.txt |
Your feedback helps to improve the overall experience
Alias Id: MIGR-77071
Last Modified Date: 01 Mar 2021
Original Publish Date: 04 Oct 2016
Document ID: DS018785
