I've even tried completely removing the cmos battery itself for 10 minutes, but nothing. If I move the jumper back to position 2-3 to try to re-run the update, it seems like it tries to boot to the disk but nothing happens this way either. I think I even walked away to see if it would eventually do something, whether it was boot to windows as it should in position 1-2, or boot to the update disk, but neither happened. I've left this thing beep for about 20 min at one point. It seems confused as to what position the jumper is in. Now that the jumper is in it's original position, when the pc is booted up after what seemed to be a successful bios update, it continuously double beeps as if the jumper was still on pins 2-3 when I fist ran the update. I unpluged these devices, removed the usb cd-rom and moved the cmos jumper back to its original position pins 1-2. In my case on the ones I am having issues with the bios update started, ran and seemed to complete successfully and have even shut down when it completed, as it has many times before when I have preformed the update this way successfully. I power down the device, moved the jumper from 1-2 position to the 2-3 position as mentioned in some of these previous posts. One the ones I have issues updating, I update them the same way I update every other one at this point.

I myself have a ton ofLenovo M73e-tiny's. Every so often when I attempt to update the bios even though I follow this same method, I still run into this issue regardless. I am having this same issue, I have been following these same instructions for some time now with about a 90% success rate.

Lenovo m72e bios download