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A little, but important UEFI update for the X240, X240s and X250

Some weeks ago, Lenovo published an UEFI update for the ThinkPad X240 and ThinkPad X250.

Before the release of this update, the keyboard of these ThinkPads had a big disadvantage regarding the combined End/Insert key: when Fn lock was activated, you had to press Fn in order to use “End”. It was really annoying for me because I use Home/End and PgUp/PageDown often to navigate and I have Fn lock activated, so I resulted in pressing “Insert” accidentaly often because I wasn’t used to it. Luckily, the new update resolved that problem: now, independent from the Fn lock state, you have to press Fn to use “Insert”.

The other reason why you shouldn’t hesitate to install this update: it mitigates “the risk of security vulnerability related to DRAM Row Hammering“.

Links to the update:

UEFI update utility – ThinkPad X240, ThinkPad X240s

UEFI update bootable CD – ThinkPad X240, ThinkPad X240s

UEFI update utility – ThinkPad X250

UEFI update bootable CD – ThinkPad X250

Please keep in mind:

  • If you are using the UEFI update utility, do not turn off or suspend the computer until the update has been completed.  IF YOU DO THAT WHILE THE UPDATE IS STILL IN PROGRESS, THE SYSTEM BOARD MAY  HAVE TO BE REPLACED.
  • If you are using the UEFI update bootable CD, do not turn off, suspend the computer or remove the UEFI UPDATE CD until  the update has been completed. IF YOU DO THAT WHILE THE UPDATE IS STILL  IN PROGRESS, THE SYSTEM BOARD MAY HAVE TO BE REPLACED.
  • Have a look at the README!