Thinkpads Forum

hello all,

i am trying to update the bios from 3.11 to 3.22 (newest).
since there is no update for win 8, i think the update for win 7 should work to!? (especially the iso boot cd).
first i tried the win installer, it says there is one file for 32bit(...us.exe) and one for 64bit(...u6.exe). but there is only one file to download - the ...us.exe - that did`t work to install.

than i tried the iso, because i have no usb-cd drive, i made a bootable usb stick with yumi.
the iso shows up after booting from the stick, but "the file can not be found"...

any suggestions on how to update the bios without cd drive on a win 8 64bit machine?
(i am trying to get this update because of the new battery driver. it got a new non-lenovo battery that has less capacits than supposed, ofcourse this can be also a bad battery... but since there is a new bios battery driver out there... )

does anyone has experience with this new bios and (better) battery capacity?

thanks a lot!

The exe/iso file you downloaded is not OS dependent – flash is done at boot, before OS is loaded.

Creating a bootable disc from the .iso involves more than copying the iso file to a disc or flash drive.
To make a disc you need something like isoburn. For a flash drive, WinUSB Maker should work, although I’ve never used it for a BIOS flash, only OS installs.

On the page where you found the exe/iso file there should be a small link to another page that has BIOS update for doing within the OS.
TVSU should also offer the update you need.

i did not just copy it, "yumi" is also a tool to make bootable usb sticks...

i just red that there are sume issues with 3rd party batteries and bios 3.22, so i am "happy" it did not work...