bios for lenovo y540-15irh (81sx)

**peste** · 08-03-2022, 03:48 AM

Re: bios for lenovo y540-15irh (81sx)

Originally posted by brontobyte

i already solved. Thanks

how did you solve it??

**brontobyte** · 08-05-2022, 06:44 AM

Re: bios for lenovo y540-15irh (81sx)

i used one bios dump downloaded from this thread.

**REPARE76** · 04-20-2023, 09:48 AM

Re: bios for lenovo y540-15irh (81sx)

Originally posted by brontobyte

i used one bios dump downloaded from this thread.

Hello
Which file did you use to solve your problem please?

**Vesko356** · 04-20-2023, 10:08 AM

Re: bios for lenovo y540-15irh (81sx)

Originally posted by peste

how did you solve it??

Originally posted by brontobyte

i used one bios dump downloaded from this thread.

Originally posted by REPARE76

Hello
Which file did you use to solve your problem please?

Yes indeed, it must be shown with a quote or post number, because it could be in help for someone else.

.

**rex98** · 05-17-2023, 11:11 PM

Re: bios for lenovo y540-15irh (81sx)

The original bios dump i use works and boot but after i shutdown it doesn't boot anymore like dead but when i reset the CMOS it boots up ang working fine intel uhd and nvdia are detected and running fine in stress test. the only problem with the bios dump original is that when i shutdown it becomes stone dead no lights, cmos needs to be reset to turn on again.
CAN SOMEONE FIX THIS PLEASE.

Attached Files

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**rex98** · 05-18-2023, 01:23 AM

Re: bios for lenovo y540-15irh (81sx)

Originally posted by brontobyte

HELLO EVERYONE

I have some issues with this machine:
lenovo Y540-15irh 81sx
s/n PF1468B6

This laptop is not turning on after restart. Only keyboard backlight and black screen. It takes a few minutes to be able to turn on again.
Video card is performing good. Good temperature and performace.

I attached bios dump.

i also have same problem what bios did you use?

**rex98** · 05-18-2023, 05:05 AM

Re: bios for lenovo y540-15irh (81sx)

Originally posted by rex98

The original bios dump i use works and boot but after i shutdown it doesn't boot anymore like dead but when i reset the CMOS it boots up ang working fine intel uhd and nvdia are detected and running fine in stress test. the only problem with the bios dump original is that when i shutdown it becomes stone dead no lights, cmos needs to be reset to turn on again.
CAN SOMEONE FIX THIS PLEASE.

i dont know if this is EC or something i just found this at back of the board and read the contents. maybe this is the problem help please

Attached Files

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y540 W25Q80EW 1.8v.zip (680.9 KB, 58 views)

**coxep89151** · 06-07-2023, 12:41 PM

Corrupted bios Lenovo Y540-15IRH

My laptop stopped working after changing some bios settings. Laptop starts but only black screen (not gpu related issue). I would appreciate if someone knowledgable could help me fix the bios file or at least tell me where to look. I already have a CH341A Programmer and familiar with how it works.

Original unmodified bios file: https://*******.com/u/TWW*******

I do not remember exactly what I changed or which change caused the issue. I played with the following settings in the bios before it went bad:

Intel SGX
Intel PTT key
Secure boot

I already tried to reset CMOS. I used this https://forums.lenovo.com/t5/Gaming-...5026109?page=1 guide, see step 5. No change.

I also flashed the bios with latest bios version from Lenovo website. I trimmed the downloaded bin file by comparing the start and end of the hex offsets with the original bin file. Still no change.

**peste** · 06-07-2023, 12:51 PM

Re: Corrupted bios Lenovo Y540-15IRH

Originally posted by coxep89151

My laptop stopped working after changing some bios settings. Laptop starts but only black screen (not gpu related issue). I would appreciate if someone knowledgable could help me fix the bios file or at least tell me where to look. I already have a CH341A Programmer and familiar with how it works.

Original unmodified bios file: https://*******.com/u/TWW*******

I do not remember exactly what I changed or which change caused the issue. I played with the following settings in the bios before it went bad:

Intel SGX
Intel PTT key
Secure boot

I already tried to reset CMOS. I used this https://forums.lenovo.com/t5/Gaming-...5026109?page=1 guide, see step 5. No change.

I also flashed the bios with latest bios version from Lenovo website. I trimmed the downloaded bin file by comparing the start and end of the hex offsets with the original bin file. Still no change.

try post #10..

**Vesko356** · 06-07-2023, 01:01 PM

Re: Corrupted bios Lenovo Y540-15IRH

Originally posted by coxep89151

My laptop stopped working...

Read the rules before posting:
RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*

Originally posted by piernov

You MUST:

Post under a related thread if it exists
Provide the full machine model number and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 )
Name your thread with model numbers and request
Provide a BIOS/EC dump if possible
Attach files directly to your post instead of linking to external websites

.

**coxep89151** · 06-07-2023, 03:40 PM

Re: Corrupted bios Lenovo Y540-15IRH

Originally posted by peste

try post #10..

It did not work. Laptop power button keeps blinking, no screen and fans working normally. Keyboard backlight also works.

Btw I did have to trim the bin file from post #10 because the file was too large. I trimmed the last bit of the bin file by comparing it to the old dump in HxD. Don't know if this is the right way to do this.

**peste** · 06-08-2023, 04:57 AM

Re: Corrupted bios Lenovo Y540-15IRH

Originally posted by coxep89151

It did not work. Laptop power button keeps blinking, no screen and fans working normally. Keyboard backlight also works.

Btw I did have to trim the bin file from post #10 because the file was too large. I trimmed the last bit of the bin file by comparing it to the old dump in HxD. Don't know if this is the right way to do this.

try this ..the last update from the site..you are right the bios from post #10 is longer...
DMI DMI 632000 - 633FFF

Attached Files

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bhcvn45ww.rar (5.21 MB, 109 views)

**Vesko356** · 06-08-2023, 05:16 AM

Re: Corrupted bios Lenovo Y540-15IRH

Originally posted by peste

..you are right the bios from post #10 is longer...

The attached dump in post #10 is now fixed.
.

**Thunder1986** · 08-21-2023, 06:08 AM

Re: bios for lenovo y540-15irh (81sx)

help me please!
Not POST since bios setting. It works with the bios shared in comment 10, but the SN and Windows key are lost. Can someone fix this bios for me?
Br

Attached Files

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Legion Y540-15IRH-PG0 81SY_nopost.zip (5.72 MB, 22 views)

**Vesko356** · 08-21-2023, 06:22 AM

Re: bios for lenovo y540-15irh (81sx)

Originally posted by Thunder1986

help me please!
Not POST since bios setting. It works with the bios shared in comment 10, but the SN and Windows key are lost. Can someone fix this bios for me?
Br

Originally posted by peste

bios extracted from the Lenovo site update
DMI 632000 - 633FFF

Replace the DMI block (from your bios backup to the bios attached in post #10) using above offsets .

.

**Thunder1986** · 08-21-2023, 09:42 AM

Re: bios for lenovo y540-15irh (81sx)

Originally posted by Vesko356

Replace the DMI block (from your bios backup to the bios attached in post #10) using above offsets .

.

Thank You!
Working...

**Pryrex** · 09-16-2023, 05:00 AM

Need help unbricking Lenovo Legion Y540-15IRH

Hello everyone! I'm in big trouble!
Three days ago I had to force shut down the laptop by pressing the power button and after that the laptop would not start. Keyboards lights and backlight on, fans on for a while but laptop won't boot at all.

I have therefore tried to use CH314a programmer in order to write the bios onto the bios chip. First time I tried using a bhcn26ww already trimmed file I found on the internet but no response. 2nd try I have tried to trim the latest file myself, bhcn45ww and after I have successfully written the file on the chip, the laptop won't even turn on the keyboard lights or backlight anymore! Next, I have tried to reuse the bhcn26ww file from earlier to see if anything changes and I have returned to the main problem: laptop would not boot but at least the keyboards lights and fans are working again. After that, I have tried writing the bhcn38ww and bhcn44ww bin files that i have found on this forum onto the chip but it seems that nothing works.

Would you be able to give me the right bin trimmed file please or guide me through what I would have to do further? I'm in a bad spot and I really need this laptop to not die on me.

Bios chip: GD25B127DSIG

Also this is the bios file that i read before i have made any modifications on to the chip:

Attached Files

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save1.rar (5.48 MB, 11 views)

**hoaca388** · 09-16-2023, 05:30 AM

Re: Need help unbricking Lenovo Legion Y540-15IRH

Originally posted by Pryrex

Hello everyone! I'm in big trouble!
Three days ago I had to force shut down the laptop by pressing the power button and after that the laptop would not start. Keyboards lights and backlight on, fans on for a while but laptop won't boot at all.

I have therefore tried to use CH314a programmer in order to write the bios onto the bios chip. First time I tried using a bhcn26ww already trimmed file I found on the internet but no response. 2nd try I have tried to trim the latest file myself, bhcn45ww and after I have successfully written the file on the chip, the laptop won't even turn on the keyboard lights or backlight anymore! Next, I have tried to reuse the bhcn26ww file from earlier to see if anything changes and I have returned to the main problem: laptop would not boot but at least the keyboards lights and fans are working again. After that, I have tried writing the bhcn38ww and bhcn44ww bin files that i have found on this forum onto the chip but it seems that nothing works.

Would you be able to give me the right bin trimmed file please or guide me through what I would have to do further? I'm in a bad spot and I really need this laptop to not die on me.

Bios chip: GD25B127DSIG

Also this is the bios file that i read before i have made any modifications on to the chip:

Post the laptop's serial number, your error may be due to the hardware.

**Pryrex** · 09-16-2023, 05:33 AM

Re: Need help unbricking Lenovo Legion Y540-15IRH

Sure thing!
S/N : PF146AJ4

Thank you lots!

**hoaca388** · 09-16-2023, 05:43 AM

Re: Need help unbricking Lenovo Legion Y540-15IRH

Originally posted by Pryrex

Sure thing!
S/N : PF146AJ4

Thank you lots!

Legion Y540-15IRH Laptop (Lenovo) - Type 81SX FROM LENOVO HOME PAGE

Attached Files

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Legion Y540-15IRH Laptop (Lenovo) - Type 81SX.rar (5.21 MB, 63 views)

bios for lenovo y540-15irh (81sx)

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