Legion 5 15IMH05 Bios

[rewx5]

Hi,

I have a Lenovo Legion 5 15IMH05 NM-C911 with i7-10750h and GTX1660Ti graphics.

One of the mosfets for the 1660Ti GPU was shorted, so I have desoldered the Mosfets for the GPU and VRAM.

Laptop boots to windows, but fans are on high speed, and shuts off shortly after.

Could you please disable the 1660Ti in BIOS for me, so I can keep using the laptop with Intel graphics?

Thank You!

[peste]

post merged..

[Tinkers1980]

Hi

I have a Lenovo Legion 5 15IMH05H
Serial PF2B6P45
MTM: 81Y6005TUK

It was doing a Lenovo system update in windows updates and it never turned back on, all I get is a blank screen.

I have tried to read the bios and it is stored as lenovo old, and the latest bios from lenovo website is the efcn59ww

is it possible someone can add the required info so I can try and flash it to get it working again

Many thanks

[hoaca388]

Hi

I have a Lenovo Legion 5 15IMH05H
Serial PF2B6P45
MTM: 81Y6005TUK

It was doing a Lenovo system update in windows updates and it never turned back on, all I get is a blank screen.

I have tried to read the bios and it is stored as lenovo old, and the latest bios from lenovo website is the efcn59ww

is it possible someone can add the required info so I can try and flash it to get it working again

Many thanks

Read chip again , file's not good.

[Tinkers1980]

I think I might have ended up trying to flash one I downloaded from Lenovo website and so not able to get the original one back, is there anyway to make one up from the one on their website and my serial number or do I need other information as well?

[SMDFlea]

I think I might have ended up trying to flash one I downloaded from Lenovo website and so not able to get the original one back, is there anyway to make one up from the one on their website and my serial number or do I need other information as well?

Make another backup lets see whats on the chip. Are you using a clip ? , what part number is etched on top of the bios chip, what model is your programmer and software version, is the chip in the support list, did you use Auto-detect or manually select the chip.

[Tinkers1980]

This is another one I tried to save but might have been after I had tried to flash

[Tinkers1980]

I am using a clip on top with a ch341 programmer it is a 25b127, I have had to set as GD25Q127c in the one program or GD25G128 in a different program, this is what I have just read from it

[Tinkers1980]

This is what the programs autodetect it as

[kamkooltech]

A working bin for everyone
Lenovo Legion 5-15IMH05H OK

[Rolin]

I have a Lenovo Legion 5 15IMH05H 81y6003yUS, Serial number PF2GN05C
It was working a couple days ago, put on the shelf. A few days later attempted to power up, no POST, keyboard lights up, fans spin for a little while then shuts off. I've already done the typical draining capacitance and removed CMOS battery,etc. No idea what happened, but I believe some Win11 updates were installing recently, but not sure if that was the last thing done on this laptop before failed.

Here is the bios, hoping it can be repaired or a new bios file to program. BTW: the chip is a winbond 25Q128JVSQ (but I chose winbond 25Q128JV on the programmer).

[hoaca388]

I have a Lenovo Legion 5 15IMH05H 81y6003yUS, Serial number PF2GN05C
It was working a couple days ago, put on the shelf. A few days later attempted to power up, no POST, keyboard lights up, fans spin for a little while then shuts off. I've already done the typical draining capacitance and removed CMOS battery,etc. No idea what happened, but I believe some Win11 updates were installing recently, but not sure if that was the last thing done on this laptop before failed.

Here is the bios, hoping it can be repaired or a new bios file to program. BTW: the chip is a winbond 25Q128JVSQ (but I chose winbond 25Q128JV on the programmer).

Legion 5-15IMH05H (Lenovo) - Type 81Y6

[hardware1]

I have a Lenovo Legion 5 15IMH05H 81y6003yUS, Serial number PF2GN05C
It was working a couple days ago, put on the shelf. A few days later attempted to power up, no POST, keyboard lights up, fans spin for a little while then shuts off. I've already done the typical draining capacitance and removed CMOS battery,etc. No idea what happened, but I believe some Win11 updates were installing recently, but not sure if that was the last thing done on this laptop before failed.

Here is the bios, hoping it can be repaired or a new bios file to program. BTW: the chip is a winbond 25Q128JVSQ (but I chose winbond 25Q128JV on the programmer).

Here is your new file, it's a virgin BIOS from Lenovo with your DMI and Windows Key.

[Rolin]

Thanks Hardware1, I used your file to program the bios. All appeared to work well through neoprogrammer, I checked all items under "Write IC" (off protect, erase, blank check, write, verify) and it completed successfully. Tried to boot up the laptop, it turned on and off a few times I assuming auto calibrating to the hardware on the laptop, but the final cycle of the boot attempt and it did the same original issue and it turned off by itself (no display throughout). I tried to power on again, and the keyboard lights up, fans spin but no POST and shuts off in about 40 seconds. Same as before. Any suggestions from anyone? This is a pretty expensive motherboard.... but not looking too good right now.

[hardware1]

Thanks Hardware1, I used your file to program the bios. All appeared to work well through neoprogrammer, I checked all items under "Write IC" (off protect, erase, blank check, write, verify) and it completed successfully. Tried to boot up the laptop, it turned on and off a few times I assuming auto calibrating to the hardware on the laptop, but the final cycle of the boot attempt and it did the same original issue and it turned off by itself (no display throughout). I tried to power on again, and the keyboard lights up, fans spin but no POST and shuts off in about 40 seconds. Same as before. Any suggestions from anyone? This is a pretty expensive motherboard.... but not looking too good right now.

You're welcome. The file I sent should works fine, so most likely it's a hardware issue. Also you can try to change the BIOS chip itself, somethings it could be faulty but still can read/write it.

[Rolin]

One more thing I just noticed. I noticed the caps lock LED will go on and off when pressed. But if it was actually running, not sure why it would just shut off in 40 seconds. And I've already tried an external monitor through the HDMI port several times to be sure (before and after the BIOS work).

[bakhanh]

Need Clean/Virgin Bios for Lenovo Legion 15-IMH05

I need a clean bios to flash to the bios chip.

Serial Number:PF30MCPC
Machine Type Model:82AU00PQVN
Legion 5-15IMH05
Mainboard: NM-C921 rev 1.0
Unfortanetely i dont have any old bios dump beceause someone wiped the bios chip. Laptop doesnt turn on right now so if someone can help me out with a clean bios.

Hope you guys can help me out.

[hoaca388]

Need Clean/Virgin Bios for Lenovo Legion 15-IMH05
I need a clean bios to flash to the bios chip.
Serial Number:PF30MCPC
Machine Type Model:82AU00PQVN
Legion 5-15IMH05
Mainboard: NM-C921 rev 1.0
Unfortanetely i dont have any old bios dump beceause someone wiped the bios chip. Laptop doesnt turn on right now so if someone can help me out with a clean bios.
Hope you guys can help me out.

Legion 5-15IMH05 (Lenovo) - Type 82AU

[bakhanh]

Legion 5-15IMH05 (Lenovo) - Type 82AU

no power.This bios file cannot be booted.

[hoaca388]

no power.This bios file cannot be booted.

Find hardware problem .

[bakhanh]

Find hardware problem .

I tried several other bios. some bios don't recognize the keyboard. some bios don't recognize the ssd... so I think the problem is still in the bios.