Lenovo USB BIOS Update

December 27, 2013
lenovo bios usb

Here are some rough notes describing how to update the BIOS on a Lenovo T420s laptop. Lenovo offers a BIOS update utility that runs under Windows or as a bootable CD. Both of these options did not work for me as I was running Linux and had no blank media for burning a CD.

Instead I plugged in a spare flash drive and did the following:

Make sure you download the correct BIOS version. I initially downloaded the BIOS for the T420 instead of the T420s.