In this blog post I will show you how to update UEFI BIOS on your Lenovo Thinkpad laptop without need to boot into Windows or use bootable CD/DVD.

I downloaded another file which updated the bios to v 9.01 however, the laptop didnt boot. Had to change the boot from 'uefi' to 'legacy system'. Now the boot screen sais Windows License 'illegal'. Also Lenovo Solution Center doenst work no more (i also reinstalled it without luck). So im thinking i have the wrong bios version. In this thread you can post your requests for Lenovo G580 (20150) and (2189), G480, G780. If someone wants upgrade Wi-Fi card and remove whitelist, or unlock hidden additional menus and settings in bios setup menu, then you can post your request in this thread. The number on lenovo thinkcentre a63 access hotkey left is the actual. Update Retriever combo we use for lenovo models, LENOVO MT M 7484 DRIVERS FOR MAC. Device serial port, onedrive matt elliott, lenovo thinkcentre m92 usff. My bios now shows invalid machine type and serial number. Articles and videos on the web say (and show) that there are prompts for this during a bios firmware upgrade. However when I upgraded mine from A4KT80A to A4KT99A last night, it went straight to the upgrade and offered no prompts to do so!

1) Go to Lenovo support portal and search for you device (ideally by its Serial Number (S/N)).

2) Go to “Drivers & Software” page and pick component “BIOS/UEFI”.

3) Find a latest version of “BIOS Update Bootable CD” suitable for your device.

4) Download the CD ISO image.

5) Download a geteltorito perl script which will be used to extract a bootable image from the ISO file.

6) Extract the bootable image from the ISO

7) Copy the image into your USB stick by dd utility (this step will destroy current content on the USB flash drive)

How To Change Serial Number In Bios Lenovo G580

Note: Update the actual device (/dev/sdb) to match your connected USB flash drive.

8) Call sync to synchronize cached writes to persistent storage

Serial Number Lookup

How To Change Serial Number In Bios Lenovo G580 Driver

9) And that’s it!

Serial Number Checker

Now you have a bootable USB flash drive with Lenovo BIOS Update Utility!