bios for lenovo y540-15irh (81sx)

[doktorkomputer]

you have everything you need at post #10..

Well, I programmed it with this batch and it didn't help, that's why I'm asking others if they found a solution

[Chino63]

Hello guys,

Can someone please clean this

Model: Legion Y540-15IRH Laptop (Lenovo) - Type 81SX

Serial: PF2D0C8H

[peste]

Hello guys,

Can someone please clean this

Model: Legion Y540-15IRH Laptop (Lenovo) - Type 81SX

Serial: PF2D0C8H

you have everything you need at post #10,32...

[wond3r]

Hello i need help too my laptop just isnt charging i tried these bios but none of them working laptop can turn on into windows with connected ac but its just not chargin lenovo legion y540-15irh-pg0

[hoaca388]

Hello i need help too my laptop just isnt charging i tried these bios but none of them working laptop can turn on into windows with connected ac but its just not chargin lenovo legion y540-15irh-pg0

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", "fix bios", "bios need" or other such terms

[wond3r]

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", "fix bios", "bios need" or other such terms

Ok so i had bhcn44ww bios and tried to downgrade to bhcn27ww and it got bricked now my laptop is running bios bhcn44ww but ec version is bhec27ww and because of that laptop stopped charging but now i downgraded back to bhcn27ww and its just led lighting on and off nothing else.
laptop: LENOVO LEGION Y540-15IRH-PG0 81SY
S/N: PF1DDHU7 i dont know motherboard which but i think its same as others i5 9300h and gtx 1650m i have programmator ch341a this is the only backup and

[hoaca388]

Ok so i had bhcn44ww bios and tried to downgrade to bhcn27ww and it got bricked now my laptop is running bios bhcn44ww but ec version is bhec27ww and because of that laptop stopped charging but now i downgraded back to bhcn27ww and its just led lighting on and off nothing else.
laptop: LENOVO LEGION Y540-15IRH-PG0 81SY
S/N: PF1DDHU7 i dont know motherboard which but i think its same as others i5 9300h and gtx 1650m i have programmator ch341a this is the only backup and

Legion Y540-15IRH-PG0 Laptop (Lenovo) - Type 81SY

[wond3r]

Legion Y540-15IRH-PG0 Laptop (Lenovo) - Type 81SY

ok so it boots up into windows but power led is just blinking and its not charging again can you help me? ec frimware version is bhec27ww and bios is bhcn27ww but its just not charging

[hoaca388]

ok so it boots up into windows but power led is just blinking and its not charging again can you help me? ec frimware version is bhec27ww and bios is bhcn27ww but its just not charging

I know nothing about computer hardware, post your problem here : https://www.badcaps.net/forum/troubl...mobile-devices

[eric35]

hello,

Can you help me ? i have problem with my computer.
I t starts, the fans blow butblack screen .
I don't have a backup of the BIOS
I am attaching a BIOS from the Lenovo site

Model : legion Y540-15IHR 81SX
MO: PF9XB9A07123
SN: PF13JELX MTM: 81SXOOLVFR

[m1ch43lzm]

You need a SPI flash programmer to backup your current corrupted BIOS

Alternatively you can try BIOS recovery using USB drive, if you don't have programmer
https://forums.lenovo.com/t5/Gaming-...SB/m-p/5026109
Skip step 4 as you can't boot into BIOS setup

[eric35]

thank you.
I have what it takes to flash, but there was an attempt to flash the BIOS via USB before, unfortunately without backing up first.
Someone can help me with bios?
thnanks a lot

[m1ch43lzm]

Please backup the contents of the BIOS chip and attach it here as ,zip or .rar, even if corrupted, that's to check if the serial/MTM is there to copy it to a clean BIOS

[eric35]

I'm not sure I can retrieve it. However, I think I provided the information you were looking for in my request. Perhaps this isn't what you need? Thank you very much


Model : legion Y540-15IHR 81SX
MO: PF9XB9A07123
SN: PF13JELX
MTM: 81SXOOLVFR

[m1ch43lzm]

I can only provide clean BIOS without serial/MTM/Win key in that case, as that DMI data is encrypted on the BIOS dump, it has to be copied to a clean BIOS, that's why you backup the existing content on the BIOS chip, even if corrupted or if you don't know what has been done to it, before flashing a new one

BIOS extracted from Lenovo website for Lenovo Legion Y540-15IRH/Y540-15IRH-PG0/Y540-17IRH/Y540-17IRH-PG0/Y545/Y545 PG0, LEGION Y7000 2019/Y7000 2019 PG0/Y7000P 2019/Y7000P 2019 PG0

Legion Y540-15IRH Laptop (Lenovo) - Type 81SX
DMI 632000-633FFF
BIOS ver. BHCN45WW

Serial/Model name/MTM will show as INVALID

[eric35]

here is a bios backup
thank you

[m1ch43lzm]

here is a bios backup
thank you

Try, DMI added

Legion Y540-15IRH Laptop (Lenovo) - Type 81SX
S/N PF13JELX
MTM 81SX00LVFR
BIOS ver. BHCN45WW

First boot may take few minutes

[Lalit Narayan]

Your model is 81SX, but I don't understand which chip you flash Vbios to ?

I flashed the same GPU i.e GTX 1660ti laptop gpu, but it was mean't for Asus laptop which I flashed for lenovo, I was having issue with low tgp wattage, so I tried with different laptop's vbios for the same GPU, however, the gpu got bricked in the process.

[eric35]

Try, DMI added

Legion Y540-15IRH Laptop (Lenovo) - Type 81SX
S/N PF13JELX
MTM 81SX00LVFR
BIOS ver. BHCN45WW

First boot may take few minutes

it works . Thank you very much