Lenovo Legion Pro NM-D562 Rev. 3.0

[hoaca388]

hello, can help me rebuild old bios
Lenovo Legion Pro 5 16ACH6H 82JQ
Problem display but every 1 minutes or a few second turn off again
Board NM-D562 rev 1.0
SN : PF303KYN
biod old attached

MMM

[notrespond]

MMM

thanks sir, its work

[Andriy00]

Hi,
Legion 5 pro 16ACH6
s/n: PF3BCA2C
NM-D601 rev 1.0
does not turn on, the power button lights up, the keyboard does not light up, does not heat up, all the voltages are there except for the CPU GPU RAM, I think the problem is in the bios

[Good2Know]

Hi.
Could someone help me with a working bios, please ?
I am learning bios stuff step by step but have no experience to edit or repair anything bios related.

Symptoms:
Only white power led, no fan, no display, cpu/gpu are heating up, all main voltages present.

Legion 5 Pro 16ACH6H
S/N:PF36JSEP
NM-D562 Rev: 2.0

MO: PF9XB1809284
MTM: 82JQ009SEG


Thank you for your time and effort.

Orig. bios attached.

[hoaca388]

Hi,
Legion 5 pro 16ACH6
s/n: PF3BCA2C
NM-D601 rev 1.0
does not turn on, the power button lights up, the keyboard does not light up, does not heat up, all the voltages are there except for the CPU GPU RAM, I think the problem is in the bios

Laptop Legion 5 Pro-16ACH6 (Lenovo) - Loại 82JS

[hoaca388]

Hi.
Could someone help me with a working bios, please ?
I am learning bios stuff step by step but have no experience to edit or repair anything bios related.

Symptoms:
Only white power led, no fan, no display, cpu/gpu are heating up, all main voltages present.

Legion 5 Pro 16ACH6H
S/N:PF36JSEP
NM-D562 Rev: 2.0

MO: PF9XB1809284
MTM: 82JQ009SEG


Thank you for your time and effort.

Orig. bios attached.

Laptop Legion 5 Pro-16ACH6H (Lenovo) - Loại 82JQ

[Good2Know]

Laptop Legion 5 Pro-16ACH6H (Lenovo) - Loại 82JQ

Thank you very much, unfortunately exactly same issues as described.
Maybe small bios has also issues (???)

[miscac]

Hi,
Legion 5 pro 16ACH6
s/n: PF3BCA2C
NM-D601 rev 1.0
does not turn on, the power button lights up, the keyboard does not light up, does not heat up, all the voltages are there except for the CPU GPU RAM, I think the problem is in the bios

has it been solved sir?
i have same problem.

[Good2Know]

Removed EC bios in order to make a backup and then tried to power laptop on without it (out of curiosity) .
Now i turns on (!) and i can excess bios etc. but sometimes pressing power gives me only power led, nothing more.
Can someone please tell me how to proceed (?)

EC bios attached.

[FrozenHaxor]

Removed EC bios in order to make a backup and then tried to power laptop on without it (out of curiosity) .
Now i turns on (!) and i can excess bios etc. but sometimes pressing power gives me only power led, nothing more.
Can someone please tell me how to proceed (?)

EC bios attached.

What do you mean exactly? You have erased the KBC then powered it on without any contents? On some Lenovo boards there will be an automatic KBC programming taking place using EC region from main bios flash, but I only know of that on brand new KBC chips that have certain factory flag still set which goes away upon first programming.

The board will absolutely not start in any way shape or form and certainly not allow you to enter BIOS settings with an empty KBC chip.

[Good2Know]

What do you mean exactly? You have erased the KBC then powered it on without any contents? On some Lenovo boards there will be an automatic KBC programming taking place using EC region from main bios flash, but I only know of that on brand new KBC chips that have certain factory flag still set which goes away upon first programming.

The board will absolutely not start in any way shape or form and certainly not allow you to enter BIOS settings with an empty KBC chip.

I did not start the laptop with an empty ec/kbc bios chip. It was off the board because i made a backup (just in case).
Then i startet the laptop (without the ec bios chip on board) to see what would happen.
Isn't UU137 the ec bios chip ?

[FrozenHaxor]

I did not start the laptop with an empty ec/kbc bios chip. It was off the board because i made a backup (just in case).
Then i startet the laptop (without the ec bios chip on board) to see what would happen.
Isn't UU137 the ec bios chip ?

No, the KBC itself is programmable with embedded flash.

[tectronlab]

hello,
can help me rebuild old bios
Lenovo Legion Pro 5 16ACH6H 82JQ
Problem only keyboard backlight, no display
Board NM-D562 rev 3.0
SN : PF3A5BYB

Old bios attached

[volinakis]

hello,
can help me rebuild old bios
Lenovo Legion Pro 5 16ACH6H 82JQ
Problem only keyboard backlight, no display
Board NM-D562 rev 3.0
SN : PF3A5BYB

Old bios attached

try

[Andriy00]

has it been solved sir?
i have same problem.

Hello, I did not solve the problem myself, I sent it to the service, and there they said that the processor died, they changed it and it came back to life

[FrozenHaxor]

Hello, I did not solve the problem myself, I sent it to the service, and there they said that the processor died, they changed it and it came back to life

Very doubtful they did that, inspect the board. Lenovo are notoriously hard to do this on due to the black epoxy underfill used on BGA components. BGA desolering in this case usually results in delaminated board and ripped pads along with lifted traces.

[layad]

hi
legion 5 pro 16ach6h
serial number: pf3mc26b
nm-d562 rev 2
believe bios is bad no display
if you can help me with fixing it pls

[SMDFlea]

Post the motherboard model number https://www.badcaps.net/forum/troubl...before-posting

[layad]

posted thanks

[peste]

posted thanks

read post #35...