Bios request for L15 Gen 4

[Arsalan455]

Power on but no display same problem

[Hraff]

Hi, i have supervisor password on that bios and i don't have the s/n because they use different case (gen3) model, this is a lenovo ThinkPad l15 gen 4.
Can you guys help me with that ?

[SMDFlea]

Hi, i have supervisor password on that bios and i don't have the s/n because they use different case (gen3) model, this is a lenovo ThinkPad l15 gen 4.
Can you guys help me with that ?

What EC chip does it have and what is the motherboard model number.

[Hraff]

Ok thanks for replying.
EC chip is lenovo ncpx9977kaabx
MB: LG4 LT5 RPL RT UMA MB 8L 223042-2

[Sparo]

Ok thanks for replying.
EC chip is lenovo ncpx9977kaabx
MB: LG4 LT5 RPL RT UMA MB 8L 223042-2

Hi, this is where the password is stored: NCPX9977KAABX
You need to post a backup of that chip in order to unlock it. The S/N is stored there as well

[Hraff]

I can't read it
Is it the winbond 25Q80DV1G chip ?

[Sparo]

I can't read it
Is it the winbond 25Q80DV1G chip ?

It's the EC chip that you said you have

EC chip is lenovo ncpx9977kaabx

[Hraff]

Ok, but how to do so ??

[Sparo]

Ok, but how to do so ??

For reading that chip. An SVOD4 or a Vertyanov programmer is required
(This has been mentioned many times on the forum already)

[Hraff]

Yes i know, but this one is bga soldered

[Sparo]

Yes i know, but this one is bga soldered

I bet you don't, No need to desolder anything
Those Programmers can reprogram the chip through the keyboard connector

[Hraff]

You win hhhhh

[fricosu007]

Hello, got an L15 which is cycling the white led after pressing power button, ESC+F1+F4 , someone tempered with the bios contents, ram is ok i don't have any original dumps to compare with, any help is much appreciated. thks !
both bios read ;

Thinkpad L15 Gen4
sn: PW-0BW0YN
Type nr: 21H4-SCMY00
board LG4 LT5 RPL UMA MB 8L
223042-2
338.OSJ41.0021

[Sparo]

Hello, got an L15 which is cycling the white led after pressing power button, ESC+F1+F4 , someone tempered with the bios contents, ram is ok i don't have any original dumps to compare with, any help is much appreciated. thks !
both bios read ;

Thinkpad L15 Gen4
sn: PW-0BW0YN
Type nr: 21H4-SCMY00
board LG4 LT5 RPL UMA MB 8L
223042-2
338.OSJ41.0021

Hi, try this file first and see if it works

[fricosu007]

it worked ! Thks alot !!

Hi, try this file first and see if it works

[Sparo]

it worked ! Thks alot !!

You're Welcome!
Enjoy and See you around in the Forum!

[Carlos Delgado]

hola , ayudenme a eliminar la contraseña de esta maquina por favor .

modelo placa : Lenovo LG4 LT5 RPL RT UMA MB 8L 223042-1
modelo : Thinkpad L15 Gen 4
el sticker del Sn: me sale borrado de la lamina
aquí le dejo los dos respaldos

MOD EDIT: Write in English please, don't post pictures unless asked

Hello, please help me remove the password from this machine.

Motherboard model: Lenovo LG4 LT5 RPL RT UMA MB 8L 223042-1
Model: Thinkpad L15 Gen 4
The serial number sticker appears to be erased from the film.
Here are the two backups.

[m1ch43lzm]

Moved to Bios request for L15 Gen 4 topic

[m1ch43lzm]

hola , ayudenme a eliminar la contraseña de esta maquina por favor .

modelo placa : Lenovo LG4 LT5 RPL RT UMA MB 8L 223042-1
modelo : Thinkpad L15 Gen 4
el sticker del Sn: me sale borrado de la lamina
aquí le dejo los dos respaldos

MOD EDIT: Write in English please, don't post pictures unless asked

Hello, please help me remove the password from this machine.

Motherboard model: Lenovo LG4 LT5 RPL RT UMA MB 8L 223042-1
Model: Thinkpad L15 Gen 4
The serial number sticker appears to be erased from the film.
Here are the two backups.

Password is stored in NPCX997 EC chip, read posts 25, 25 and 31
More info: https://www.badcaps.net/forum/troubl...-svod4-npcx997