Download Lenovo ThinkPad T420s/T420si BIOS Update Utility 1.38

To start downloading Lenovo ThinkPad T420s/T420si BIOS Update Utility 1.38, please choose one of the links from the list below.

  1. ThinkPad T420s, ThinkPad T420si BIOS Update Utility 1.38: 8cuj18us.exe
  2. ThinkPad T420s, ThinkPad T420si BIOS Update Utility Read Me

Manual Update

This section assumes to use Internet Explorer and Windows Explorer.

  1. Click once on the underlined file name. Once this is done, some pop-up windows will appear.
  2. Follow the instructions on the screen.
  3. In the window to choose Run or Save, click Save.
  4. Choose the folder you would like to download the file to and click Save. A different window will appear and the download will begin and complete. Once the download has completed, there may or may not be a message stating that the download completed successfully.
  5. Make sure to be logged on with an administrator account on the target computer.
  6. Make sure the AC adapter is firmly connected to the target computer.
  7. Locate the folder where the file was downloaded.
  8. Locate the file that was downloaded and double-click it.
  9. Follow the instructions on the screen.
  10. In the Select Destination Location window, click Next. If you would like to select a different folder, click Browse.
  11. In the Ready to Install window, click Install. All the necessary files will be extracted to the folder selected in the step 10.
  12. Make sure the checkbox next to "Install ..... now" is checked and click Finish.
  13. Follow the instructions on the screen.
  14. Select "Update ThinkPad BIOS" and follow the instructions on the screen.
  15. After the update has been completed, the program shows a message "Flash Update has been successfully completed...". Follow the instructions on the screen to restart the computer.

Finally delete the file saved in the step 4.

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If you have found mistakes during downloading, please email to info@userdrivers.com. We will endeavour to solve these as soon as possible. Other problems, please try to contact publisher's official support.

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