Unlock Bios Password L570 bios password removal

[Nuclearpunch]

I am getting bios supervisor password on every bios that I flash through ch341a...

The attached bios at least get black screen with only fan working.

Do you think that patching attached bios and flashing it could remove the password for good?
Could you patch it please if so?

 

[Vahab Hemmati]

send motherboard model

 

[Nuclearpunch]

L570 is lenovo thinkpad laptop
I don't know the motherboard model.

 

[Vahab Hemmati]

search on motherboard under all stickers and heat sink

 

[Nuclearpunch]

it seems like it's the motherboard's referece ?

 

[Vahab Hemmati]

program EC to remove password


pins=32 LEFT DOWN 0.5MM JENK=7 TCK=19 TMS=20 TDI=21 TDO=10

 

[Nuclearpunch]

program EC to remove password


pins=32 LEFT DOWN 0.5MM JENK=7 TCK=19 TMS=20 TDI=21 TDO=10

I'm sorry I'm new to all this. And I am not sure to follow you.

Can I flash your attachments through a rom writer ?

Or I need to access windows and do something on cmd ?

 

[Vahab Hemmati]

I'm sorry I'm new to all this. And I am not sure to follow you.

Can I flash your attachments through a rom writer ?

Or I need to access windows and do something on cmd ?

you need programmer device to do that

 

[Nuclearpunch]

you need programmer device to do that

like ch341a ?

 

[Nuclearpunch]

and could you tell me what does it mean ?

pins=32 LEFT DOWN 0.5MM JENK=7 TCK=19 TMS=20 TDI=21 TDO=10

thanks a lot for your hard work

 

[Vahab Hemmati]

like ch341a ?

yes

 

[Vahab Hemmati]

and could you tell me what does it mean ?

pins=32 LEFT DOWN 0.5MM JENK=7 TCK=19 TMS=20 TDI=21 TDO=10

thanks a lot for your hard work

pins for programming that ic

 

[Nuclearpunch]

pins for programming that ic

Do I apply your EC.bin on rom chip or there is a specific chip which manange only the password of the supervisor password ?

thanks again

 

[Vahab Hemmati]

Do I apply your EC.bin on rom chip or there is a specific chip which manange only the password of the supervisor password ?

thanks again

yes it has EC chip which password is stored on that
its not rom chip

 

[Nuclearpunch]

yes it has EC chip which password is stored on that
its not rom chip

I found out that the one in red circle is a bios rom chip.

Can you please make a circle on the EC chip which password is stored?

Thanks very much

 

[Vahab Hemmati]

I found out that the one in red circle is a bios rom chip.

Can you please make a circle on the EC chip which password is stored?

Thanks very much

the one which written NUVOTON on it

 

[Nuclearpunch]

the one which written NUVOTON on it

I saw a little bit how to flash NUVOTON chip and it seems much harder than flashing bios rom chip...

And I think I don't have the necessary skill for it.

Do you have another solution to remove supervisor password?

In the video below, it seems like the dude only replaced a bios rom (probably patched one) to remove supervisor password??

 

[Ali Shaikh]

"Instructions for use"

Remove all battery and CMOS battery

press F1 to enter setup: password 1234
wait 20sec or more.
Enter any ID to hardware Id.
Press 2x space bar when asked.
Turn off the computer.
and restore your original bios .

Enjoy.

If 2x 5beep, it's normal.
I didn't do checksum but it must light up anyway.
Wait minimum 30sec before screen logo light on. Must turn on/off several times by itself.

 

[Nuclearpunch]

"Instructions for use"

Remove all battery and CMOS battery

press F1 to enter setup: password 1234
wait 20sec or more.
Enter any ID to hardware Id.
Press 2x space bar when asked.
Turn off the computer.
and restore your original bios .

Enjoy.

If 2x 5beep, it's normal.
I didn't do checksum but it must light up anyway.
Wait minimum 30sec before screen logo light on. Must turn on/off several times by itself.

thanks so much my friend it rly helped me

 

[Salimeh Bolboli]