Hello people! I'm Nicky, I'm a brazilian that love eletronics and came to this forum to lear about how to repair boards and, maybe (probably), make some posts about my journey to revive a Lenovo Legion Y540-15IRH 81RJ that don't even turn on the power light hshshsh

Hello,

I'd like to ask someone more experienced than me for advice - I'm trying to repair this Legion Y540 with a burnt mosfet (PU3001) through the PCB (damaged/shorted capacitor was also on the other side).

I am able to drill out the damaged part of the PCB, repair the surface paths and solder the components according to the available Board view data, but it is very difficult to find out if some internal paths are broken.

1) Any chance there is/will be CAD documentation available for the PCB layers for this Lenovo, such as for example for the Dell E7470...

I need Legion an Y540-17IRH bin and/or ec file for it8176
The keyboard stopped working after some firmware update.
Can any one can help me ?
Thanks you.

[B]Legion Y540-17IRH Laptop (Lenovo) - Type 81Q4[/B]

​[B]Legion Y540-17IRH Laptop (Lenovo) - Type 81Q4[/B]

​...

Hi all,

My Lenovo Legion Y540-17IRH is bricked—black screen, Novo button dead after BIOS corruption. The motherboard was upgraded by a Lenovo tech years ago (GTX 1660Ti to RTX 2060Ti). Here's the rundown:

- Full Machine Model: Lenovo Legion Y540-17IRH Laptop (Lenovo) - Type 81Q4
- Serial Number: PF1WV4BK
- Board Model Number: Couldn't find exact number—saw “FY710” near RAM slots, unsure if it's the full identifier due to the upgrade. Let me know if more is needed!

The SPI flash chip is a GigaDevice GD25Q128C (16MB). Using a CH341A programmer...

Model - Lenovo Legion Y540-15IRH 81SX
S/N - PF1DWQR4

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

Hello everyone! I'm in big trouble!
Legion Y540-15IRH Laptop (Lenovo)
SN :FY515/517/517/518
FY523/524/525/526
NM-C221 Rev 2.0​
I need help when booting into bios the keyboard works normally, but when entering Windows the computer loses connection and the keyboard cannot use any keys. Please help me edit this bios file
Attached Files...

Hello everyone! I'm in big trouble!
Legion Y540-15IRH Laptop (Lenovo)
I need help when booting into bios the keyboard works normally, but when entering Windows the computer loses connection and the keyboard cannot use any keys. Please help me edit this bios file...

Hello,

I am looking to see if there is a boardview for the Lenovo Legion Y540-17IRH-PGO (81T3) or similar. I have found a boardview for a Y540-15IRH for purchase only, but my card gets declined on every site because of the country or type of site. Also, I am unsure if that would work for my board or not. I only need it for an issue with my charging port. ANY HELP WILL BE GREAT!

bios extracted from Lenovo site update for L:egion 540-15IRH, Legion Y540-15IRH-PG0, Legion Y545, Legion Y545 PG0, Legion Y540-17IRH, Legion Y540-17IRH PG0, Legion Y7000 2019, Legion Y7000 2019 PG0
DMI 632000 - 633FFF​ [ATTACH]n3544506[/ATTACH]...

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

Hello, I got a problem with my Lenovo Legion Y50-17IRH, motherboard model fy710/fy714 NM-C531 Rev 2.0

I cannot get it to boot, the white power led lights up for 10-12s, and then resets, it's unable to make post. When I power the motherboard with power supply, it draws 0.034A and there's missing 1.2V on coil.
It randomly boots, usually after removing the power supply and waiting 20-30mins, it boots, but only without SSD installed, it shows that boot failed, and when I got SSD connected, it just shut downs after 10-15secs into post.
When it shut downs, or I press power button...

Hello everybody,

I have a bricked (after BIOS downgrade) [B]Lenovo Legion Y540-17IRH[/B] 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-sinHello everybody,

I have a bricked (after BIOS downgrade) [B]Lenovo Legion Y540-17IRH[/B] notebook. Attached is a screenshot of the motherboard version and a dump of the corrupted BIOS. Could anybody...

Hello and THANK YOU all for this shared knowledge database that is this forum. especially [USER="562281"]Brainfart[/USER] and [USER="363699"]infino[/USER] that throw this comment and solve my problem .nice hit😂

In my lenovo legion y540 the keyboard works sometimes on bios,other times not even can enter in bios. Never worded on windows and appear an Unknown usb device on devices lists (that is a "usb compose device" with failed descriptor on port #0006.hub_#0002" if i'm not mistaken because now it's already fixed and don't appear anymore. The keyboard...

This specification for the Lenovo Legion Y540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Y540 boardview and Y540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo Legion Y540...

This specification for the Lenovo Legion Y540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Y540 boardview and Y540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo Legion Y540...

This specification for the Lenovo Legion Y540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Y540 boardview and Y540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo Legion Y540...

This specification for the Lenovo Legion Y540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Y540 boardview and Y540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo Legion Y540...

This specification for the Lenovo Legion Y540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Y540 boardview and Y540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo Legion Y540...

This specification for the Lenovo Legion Y540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Y540 boardview and Y540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo Legion Y540...

This specification for the Lenovo Legion Y540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Y540 boardview and Y540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo Legion Y540...

This specification for the Lenovo Legion Y540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Y540 boardview and Y540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo Legion Y540...

This specification for the Lenovo Legion Y540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Y540 boardview and Y540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo Legion Y540...

This specification for the Lenovo Legion Y540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Y540 boardview and Y540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo Legion Y540...