@Lost_N_BIOS so I tried flashing both files and password is still there. Also I do not know the password. The password was written in a password keeper application and I lost all files so I no longer know the password.

Not sure if it matters but I guess it is a Supervisor password.

And you did that with programmer correct? If yes, did you erase first, then blank check, then write/verify? And did you clear CMOS before powering on again?

If yes, then password is not stored in BIOS chip

I think I got it right. I erased but didnt blank check. I DOd clear CMOS agter writing. I will try again today

@Lost_N_BIOS so I erased chip, did blank check then wrote the file to chip and verified and i then I pulled power and held the power button for a minute. Booted and still has password. I disconnected the CMOS battery before reading and writing chip.

@eknsibby - Please test this BIOS now instead then, this has only stock/empty NVRAM and stock EC dropped back in - may fail to boot due to the NVRAM empty, but this is only way to check if password is stored in NVRAM without a dump from system without password.
Unless you have two of these systems, and one does not have password? If yes, send dump from other. If this boots, but fails to remove password, then password is not kept in BIOS chip, since this is nearly 100% stock (except FD, ME, and GbE and passwords are never stored there that I've ever seen)
http://s000.tinyupload.com/index.php?fil...429294078974998

@Lost_N_BIOS It booted up and asks for a password but this time next to the lock icon there is a person on the left of the lock icon

A person!?!?! In the BIOS?? What's that mean? Anyway, this means the password is stored in some other chip on the board Dump them all, maybe we can find, but doubtful since it's probably encrypted so we wouldn't recognize it, but we can check.

You mentioning a person, are you sure this is in the BIOS, a BIOS password, or are you at a windows login screen?

https://www.dropbox.com/s/ysmui3zzbw56z2...233820.jpg?dl=0
https://www.dropbox.com/s/c5i0ptk6wf0765...232642.jpg?dl=0

Here are some pics I took that I get when it booted up
@Lost_N_BIOS

It asks for password after the lenovo splash screen. You press Enter then F1 and it asks for password before you can make any changes to bios.

Thanks, yes I guess that is still BIOS/UEFI pass not windows login. So, that person wasn't there before?

Have you loaded optimal defaults yet? Asking in regards to that CRC error, or is that only in this last test batch (Maybe due to missing/empty NVRAM etc), I can't see that error on my end where I usually might, so unsure it's cause or how to correct, but it's no big deal in this instance anyway, password remains.

There is some other chip on the board storing password, you'll have to try and dump them all and see if we can find it, I don't have high hopes for that though, it's likely encrypted and we'd never know even if we were looking right at it.
But, once you dump them all, we can test blanking them one by one until you find it!

I will try and dump other chips.

@Lost_N_BIOS You have a good solution
please help me with this problem ---->>>> BIOS for Lenovo x260

Hey. I decided to join and revive this thread since I have the same problem. I got a discarded corporate Thinkpad T580 that has a supervisor password and I wanna try my best to fix it myself (guess I'm cheap and kind of a geek ;)). I used to mod Xboxes back in the days so using command line in Linux and even soldering things doesn't scare me. So the question is; which EEPROM is it that needs to be flashed in this model and does anybody have the right fw for it?

@azbest - dump all 25xx SOIC8 type BIOS chips and send me contents. then link me to latest BIOS for the system you want used.
*Edit - never mind, read through this thread, the only method I know does not work for this system. I sent you info/alternatives to try in reply to your PM

See solution here, may not be exact same for your model, but I bet it either is, or similar, the chip shown in the alternative link I sent in PM to short
BIOS for Lenovo x260 << He replaced chip, problem solved, so also the short method should work to let you in and then you can reset/blank it