Reseat the CMOS Battery

If your motherboard does not have a CLEAR CMOS jumper, you can often clear its CMOS settings by removing the CMOS battery and replacing it. The CMOS battery provides power used to save the BIOS settings – this is how your computer knows how much time has passed even when it’s been powered-off for a while – so removing the battery will remove the source of power and clear the settings.

Important Note: Not all motherboards have removable CMOS batteries. If the battery won’t come loose, don’t force it.

First, ensure the computer is powered off and you’re grounded so you won’t damage the motherboard with static electricity. Locate the round, flat, silver battery on the motherboard and carefully remove it. Wait five minutes before reseating the battery.

Since I am kind of naive, and do not understand what these people are talking about (you are opposing them, am I correct, or maybe not)?

> It's a kind offer, but not useful in my experience, for the above reasons. All Lenovo BIOS updates require a Lenovo BIOS.

Two questions/conclusions: did you ever try what I proposed here? If NOT, it is worth trying. If YES, total valid observation. Then DEDIPROG flash programmer or similar of kind is a must, unfortunately?!

Zoran