Unlock Bios Password lenovo p50

[mort2259]

I have 60 of these lenovo p50 laptops I need to get into. is it possible to get a bios to load into the chip that will work for all of them. they are identical.

 

[Vahab Hemmati]

send motherboard model

 

[mort2259]

nm-a45

 

[Vahab Hemmati]

nm-a45

send full model

 

[mort2259]

Sorry never done this before
Nm-A451
Rev:1.0

 

[Vahab Hemmati]

Bios - lenovo thinkpad p50 nm-a451 bios

lenovo thinkpad p50 nm-a451 rev-1.0 16 mb

dr-bios.com

 

[mort2259]

can i use this file on all the laptops?

 

[Vahab Hemmati]

Yes

 

[mort2259]

loaded and verified. three green blinks when i hit the power button and it does not boot with the file you gave me

 

[Vahab Hemmati]

what is problem with old file ?

 

[mort2259]

they are bios locked i need to unlock all of them

 

[Vahab Hemmati]

you need to program EC file to remove password

 

[mort2259]

is there a tutorial for that or do you know the chip location

 

[Vahab Hemmati]

this link will help :

How To Change And Program I/O In Lenovo G50-70

In this video, we have Lenovo G50-70 laptop with a problematic IO. You can practically see how to change IT8586E IO IC and you’ll get familiar with all the details of programming IO by SVOD3 and TNM5000 programmers. Stay with us and tell us what you think about the video in the comment section...

dr-bios.com

 

[mort2259]

reprogrammed the ec chip in location u15 and it still comes up as locked

 

[mort2259]

maybe im not explaining it correctly. i have a ch431a programmer with soi8c clip. how do i unlock the bios of these computers
the translation in that video is very confusing and i do not have the programmer he is using so it does not help me

 

[Vahab Hemmati]

"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 :