Lenovo Legion 5 15IAH7 - NM-E241 Rev 1.0 - BIOS fix needed

[Mirenia]

Hello everyone,

My Legion 5 15IAH7 won't post. won't boot. No fans, no keyboard backlight.
Online power led and charging led lights up.

My guess is that there is some issue with the BIOS.

It's the NM-E241 Rev 1.0 motherboard.

As I found out there are two BIOS dumps needed for this board.
One 16MB and one 8MB.

I've got both uploaded. Can you maybe check and fix this BIOS files?

Thanks a lot in advantage

[LEO037_2029_]

Mirenia

You MUST:

• Read BIOS guides, methods, resources and tools
• Try the method at BIOS guides, methods, resources and tools before requesting help
• Explain you were not able to succeed with the methods at BIOS guides, methods, resources and tools
• Use search function in case someone already answered your request
• Post under a related thread if it exists
• 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.
• Name your thread with make, full model numbers and request
• Provide a BIOS/EC dump if possible
• Attach files directly to your post instead of linking to external websites
• Post what the problem is,be specific - Black screen,no boot,running slow,password.
  Do NOT post "clean me","clear bios","clean bios","bios need" or other such terms

[Mirenia]

Oh, I think I forgot the serial number. Sorry!

S/N: PF3YZ65A

Full board name: jy572 jy573 jy673 NM-E241 Rev:1.0

[LEO037_2029_]

Mirenia attach full pics model number, serial number

[Mirenia]

Here are the pictures

[LEO037_2029_]

Mirenia hi try this bioss and tell me if work ,,,

[Mirenia]

Thanks a lot!
But unfortunately the error persists... only charging led and power led lights up.
No fans, nothing. Testet with and without main battery and with and without cmos battery.

But I feel that the heatsinks and the area where the battery is plugged in on the board are getting warm

[peste]

Thanks a lot!
But unfortunately the error persists... only charging led and power led lights up.
No fans, nothing. Testet with and without main battery and with and without cmos battery.

But I feel that the heatsinks and the area where the battery is plugged in on the board are getting warm

Bios extracted from Lenovo site update for Legion 5 Pro 16IAH7, Legion 5 Pro 16IAH7H, Legion 5 15IAH7, Legion 5 15IAH7H
DMI 31E000 - 31FFFF

[Mirenia]

Thanks a lot!!!!
I just wanted to try this version, but unfortunately while desoldering one leg is broken off of one chip...

Now I have to order a replacement (as a private person this seems really difficult... I don't want to order 2000 pieces at once )

As soon as I got the new chip, I'll try it again

[src8324]

Hi everyone,
I'm new here and could really use some help with combining BIOS files. I have a Lenovo Legion 5 15IAH7, serial number PF3Q0T3P. I'm attaching the .exe file I downloaded from the Lenovo site along with a backup of my old BIOS. I tried flashing a blank BIOS file, and while the laptop works, it's missing the original manufacturer details in the BIOS. If anyone could assist me with merging these files as soon as possible, I'd really appreciate it.
Thanks so much!

[qayyum786]

Hi everyone,
I'm new here and could really use some help with combining BIOS files. I have a Lenovo Legion 5 15IAH7, serial number PF3Q0T3P. I'm attaching the .exe file I downloaded from the Lenovo site along with a backup of my old BIOS. I tried flashing a blank BIOS file, and while the laptop works, it's missing the original manufacturer details in the BIOS. If anyone could assist me with merging these files as soon as possible, I'd really appreciate it.
Thanks so much!

Try

[hoaca388]

Hi everyone,
I'm new here and could really use some help with combining BIOS files. I have a Lenovo Legion 5 15IAH7, serial number PF3Q0T3P. I'm attaching the .exe file I downloaded from the Lenovo site along with a backup of my old BIOS. I tried flashing a blank BIOS file, and while the laptop works, it's missing the original manufacturer details in the BIOS. If anyone could assist me with merging these files as soon as possible, I'd really appreciate it.
Thanks so much!

Here

[src8324]

Here

Why there are two files, one 16mb and another 8mb, could you please explain, I am new to bios flash.

[shiyab]

Why there are two files, one 16mb and another 8mb, could you please explain, I am new to bios flash.

both file flash

[hoaca388]

Why there are two files, one 16mb and another 8mb, could you please explain, I am new to bios flash.

Your bios file is 24MB long, divided into 2 parts: 8 MB +16 MB.

[src8324]

Here

It worked. thanks a lot!

[src8324]

Try

It worked. thanks a lot!

[TJ M]

Hi, I have a Lenovo Legion 5 Pro that is not booting. It original froze when booting into windows but now its just a black screen. The keyboard lights come on, fans spin for a second and it feels like the CPU and GPU both heat up but nothing on the screen or external monitor either.
Can someone please check my bios to see if there is something wrong with it? Thank you.

Lenovo Legion 5 Pro 16IAH7H
Factory ID: JVFC1
S/N: PF3TMAZV
MO: PF9XB2704419
Mfg Date: 04/07/22
NM-231 Rev 1.0

[peste]

Hi, I have a Lenovo Legion 5 Pro that is not booting. It original froze when booting into windows but now its just a black screen. The keyboard lights come on, fans spin for a second and it feels like the CPU and GPU both heat up but nothing on the screen or external monitor either.
Can someone please check my bios to see if there is something wrong with it? Thank you.

Lenovo Legion 5 Pro 16IAH7H
Factory ID: JVFC1
S/N: PF3TMAZV
MO: PF9XB2704419
Mfg Date: 04/07/22
NM-231 Rev 1.0

you have everything you need at post #8

[TJ M]

you have everything you need at post #8

I have tried that unfortunately but I'm still getting a black screen.