Lenovo Thinkpad L15 gen 1 Bios Request

[mustangank]

Motherboard model : GL4A0 / GL5A0 NM-C631

the problem is the power light is on 3 times i hope it's a bios problem.
serial number in file,

I added the read bios;

[juan667134]

HELLO FRIENDS
COULD YOU HELP ME WITH THIS BIOS LENOVO GL4A0/GL5A0 NM-C631 REV 1.0 ThinkPad L15 DARK SCREEN PLEASE


BIOS BACKUP

[Vesko356]

Do NOT post in all caps please!

[SMDFlea]

HELLO FRIENDS
COULD YOU HELP ME WITH THIS BIOS LENOVO GL4A0/GL5A0 NM-C631 REV 1.0 ThinkPad L15 DARK SCREEN PLEASE
BIOS BACKUP

Read the rules please !

RULES UPDATE for BIOS requests/offers AVOID BANNING, READ BEFORE POSTING
https://www.badcaps.net/forum/troubl...before-posting

You MUST:

• Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 ) ,The serial number, make, full model number, motherboard model and revision (except QR codes) must be written/typed at your request as per the rules. Not as a picture, part of the file name and so on.

[juan667134]

model ThinkPad L15 gen 1
compliance id:tp00121a
serialnumber PF-1SXK6K type number 20U3-S00100


board GL4A0/GL5A0 NM-C631 REV 1.0
prosesador core i3 de 10th gen


help please

[cristiannec]

Hello , Lenovo L15 Gen 1 20U3-0015RI

S/N : PF-2BMSV5

Board : GL4A0/GL5A0 NM - C631 REV : 1.0

i7 10th gen

Machine starts but restarts in few seconds, boot loop.

Here is read original bios,

Thanks!

[hoaca388]

Hello , Lenovo L15 Gen 1 20U3-0015RI

S/N : PF-2BMSV5

Board : GL4A0/GL5A0 NM - C631 REV : 1.0

i7 10th gen

Machine starts but restarts in few seconds, boot loop.

Here is read original bios,

Thanks!

L15 Laptop (ThinkPad) - Type 20U3

[cristiannec]

Perfect Thanks!!!

[gigasi]

Lenovo thinkpad L15 gen 1
Type number: 20U4S4T000
Serial: PF-2GVRTK
GL4A0 GL5A0 NM-C631
Micro: intel i5

It turns on but there is no video signal. I have tried some bios but it takes a long time to provide video or other times it does not provide an image. I leave old bios. thank you.

[Xprit]

Hi

After bios update version 1.33 (2may 2024) I have a black screen and the computer beeps.

Lenovo Thinkpad L15 gen 1
type Number: 20U8S0LK00
S/N: PF3JBAAB
GL4A5 / GL5A5 NM-C741 rev 1.00
Processor: Amd Ryzen 3 pro 4450U

who can help me ?

[zinnou]

help lenovo l15 gen 1 nouvton password
TP00121E
SN PF-2KPS9S

[SMDFlea]

Post moved to Gen 1 thread from Gen 2 thread................

[Maxpower3]

help lenovo l15 gen 1 nouvton password
SN PF-2KPS9S

Try

[zinnou]

Try

write success put show this err

[Maxpower3]

write success put show this err

retry

[zinnou]

retry

work with password

[Maxpower3]

sorry bad file
it's original
retry

[zinnou]

sorry bad file
it's original
retry

samme errour

[Maxpower3]

samme errour

try with ff but I don't understand

https://www.badcaps.net/forum/troubl...25#post3259925

[zinnou]

try with ff but I don't understand

https://www.badcaps.net/forum/troubl...25#post3259925

test with 00 and with ff same error restore original file work with password

[Maxpower3]

test with 00 and with ff same error restore original file work with password

There are password chunks left after the usual location

here is a block after password (block6/7), I don't know this function 0x5C600 and 0x5D600.

I think it's good today, I understood




edit try file 2 , 1 must not work

[Maxpower3]

post a photo of the bios setup with numbers if you can with enter (for research)