Extract the eltorito boot image from the image "geteltorito -o thinkpad.img Downloads/n1eur31w.iso".Download the BIOS Update bootable CD image from Lenovo "n1eur31w.iso" (Select Windows as OS so it's available for download).If it's cool that the computer in your computers computer running Minix (or whatever is involved in this case) updates your firmware is a different topic, but the process is pretty straight forward. So no USB sticks, FreeDOS, SystemrescueCD images or other tricks involved. Use your mouse to select the update file visually and watch the magic.Select the "Flash BIOS Update" menu option.Boot into the one time boot menu with F12 during the BIOS/UEFI start.Download the file "Latitude_E7x70_1.18.5.exe" (or whatever is the current release).So here is the short list of what actually worked in case I need to do it again." Searching the interwebs for some hints I found a lot outdated information involving USB thumb drives, CDs, FreeDOS in variants but also some useful stuff. So I set out to update (for the first time) the BIOS of my laptops. "Maybe some recent events let to BIOS update releases by various vendors around the end of 2017. Maybe some recent events let to BIOS update releases by various vendors around the end of 2017
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