Hey guys, please help. I have a Lenovo Legion Y540-15IRH (81SX) laptop, S/N PF2D7SAH MTM 81SX014LRU ID JVHFC1. I need a clean BIOS (clean ME) with my serial numbers. My BIOS may be corrupted.

Hi, I'm working on a Legion 5, NM-C221 Rev. 2.0 board. Charging port replacement butchered by other shop and EC took a hit. I ordered replacements from China (shums) soldered it on and nothing happens, no lights. It does get 3.3V bot no 5V, draws 50mA. I read on another thread (Lenovo y540-17IRH IT8226e-192 - Badcaps) that it should auto-program but I'm not sure how that process works, should I wait 30s, 1min... then lights will come on, do I need to flash a particular bios or is there something else wrong with the board? Any assistance is much appreciated, thanks.

Try

Legion Y540-15IRH Laptop (Lenovo) - Type 81SX
S/N PF2GM2BJ
MTM 81SX00V1FR​​
DMI 632000-633FFF
BIOS ver. BHCN45WW​​...

Try
Legion Y540-15IRH Laptop (Lenovo) - Type 81SX
S/N PF1DWQR4
MTM 81SX00F0IN
DMI 632000-633FFF
BIOS ver. BHCN45WW

Lalit Narayan try VBIOS from TPU, PCI ID 10DE 2191 Subsystem 17AA 3FFC
VBIOS chip is 1.8V, W25Q80 or equivalent...

Hello everybody,

I have a bricked (after BIOS downgrade) Lenovo Legion Y540-17IRH notebook. Attached is a screenshot of the motherboard version and a dump of the corrupted BIOS. Could anybody provide me with an up-to-date, fixed BIOS file with all DMI information transferred?

I thank you very much in advance for your efforts.

sect-sin...

hello, I have a lenovo legion y540 (nm-c221 rev 2.0), it suddenly turned off and then started to restart continuously, I reprogrammed the bios. After the reprogramming, the fans turned on for 5 seconds and then it turned off completely. The PU601 started to heat up and I discovered that there was an internal short in the ITE so I ordered a new one and put it on the board, but the laptop still doesn't give any sign, it doesn't start. I also read here on the forum that the IT8226E-192 on this model rewrites itself, is it true or do I have to rewrite it? I don't know what else to do with it......

Try, DMI added

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

First boot may take few minutes...

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....

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...

Thread moved to LENOVO 82Y3 Legion Slim 7 16IRH8 bios password topic. I know you`re new here but i can`t understand why you posted in the Y540 topic ?...

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

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...

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...

Edit: apologies, I only need help with the DMI info.. I thought the ME region would need attention in order to recover from bricked state but maybe I misunderstood.

Im a novice to this experience but in short, I performed a backlash from the latest and final bios firmware BHCN45WW to BHCN26WW hoping that would solve an issue with keyboard functionality failing after an update. Ended up hanging during flash process and then system would no longer POST on reboot.

USB recovery process didn't seem to take. So today I successfully managed to get the BIOS dump from my machine...

Hi, I'm Alex from California,I'm a musician and gamer.

So, i have a Lenovo legion y540 15irh (81sx). 9th gen i7 ... It originally was on windows 10 when i got it, and apparently the bios boot mode was set to legacy mode.

Well, a few years after warranry ended, and apparently Lenovo recently ended service and updates for this, my keyboard randomly stopped working, but intermittently,

Refreshing windows 10 didnt help. I managed to safely change over the boot mode from legecy to UEFI, i updated to windows 11, but keyboard issues continued.

It would...