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Paper Tape
Posts: 1
Registered: ‎12-15-2015
Location: US
Views: 381
Message 1 of 2

W540 BIOS update failed using Lenovo System Update


I have a Lenovo Thinkpad W540 which is out of warranty.  While using the Lenovo System Update utility to update the BIOS, the BIOS update failed, and now my W540 will no longer boot.  Is there a way to restore the BIOS without replacing the system board?


Is there a place where can I download the BIOS file (not only the upgrade utility)?


Thank you!

Bit Torrent
Posts: 2,469
Registered: ‎12-11-2015
Location: US
Views: 354
Message 2 of 2

Re: W540 BIOS update failed using Lenovo System Update

I would try resetting the BIOS by unplugging the coin cell battery for a few minutes, and then re-assemble and try booting the system up.


The steps to do so are pretty simple on that model, and only require a small Phillips screwdriver and and perhaps a pair of tweezers or needle nose pliers.


For access, remove the following as detailed in the Hardware Maintenance Manual 

  • Detach AC power adapter
  • Remove the battery pack (page 60)
  • Remove Small bottom door  (Page 65)
  • Unplug the coin cell battery  (Page 69)

With both batteries unplugged, you might want to press and hold the power button for about 15 seconds to drain to make sure all power has dissipated.


Hardware Maintenance Manual ThinkPad T540p, W540, and W541



If that does not work, I am not sure you will be able to boot from a CD either, but a bootable CD version of the BIOS update is available from the support site for that system linked below.



Good Luck,

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