Hello Badcaps People,

This is my first time posting here, but I've understood this is the best place when looking for expert assistance! Thanks for having me.

My problem is the following: My laptop (used to... see below) works good, except that the bios/UEFI settings are locked behind an "System Password". This is strange, since I've bought it new and can't recall setting the password. I've contacted the seller, no luck. I've contacted Lenovo, they can't/don't help. I've also tried other methods, with no luck. A repair shop has tried to update the bios to solve...

Hi guys can someone help me remove password on this laptop
Device: Laptop
Brand: Lenovo
Model: Lenovo Ideapad 5 Pro 16ACH6
Board Number: NB3029_MB_D_ V4
Request: Bios Password Removal
S/N: YX03S2DH

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This specification for the Lenovo IdeaPad IdeaPad 5 Pro 16ACH6 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 IdeaPad 5 Pro 16ACH6 boardview and IdeaPad 5 Pro 16ACH6 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,...

This specification for the Lenovo IdeaPad 5 Pro 16ACH6 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 5 Pro 16ACH6 boardview and 5 Pro 16ACH6 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...

This specification for the Lenovo IdeaPad 5 Pro 16ACH6 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 5 Pro 16ACH6 boardview and 5 Pro 16ACH6 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...

I finally managed to find a working bios.
Lenovo Ideapad 5 Pro 16ACH6, borad: nb3029_mb_u_v4.
I am sending it for others....

I have a single blown SOT-23-5 thingy in the EDP circuit for this device. SMDFlea probably ID'd it but I would like to not explode this thing just in case

Device: Laptop
Brand: Lenovo
Model: Ideapad 5 Pro 16ACH6
Board Number: NB029_MB_U_V4
Request: Schematic and Boardview

Re: IC Marking Codes and Datasheets #2

Never had to ask before, but this IC a SOT-23-5 is marked with

K2N18

Pin 1 has ~600mA
Pin 2 is GND
Pin 3 seems NC
Pin 4 is 1.8v directly next to a 100K resistor to gnd
Pin 5 is 3.3

It's on the EDP circuit, possibly BKLT or EDP PWR? One cap blew and pins 1-2 are shorted on the bad device

One website says it's a RP400N301B (smdmark)
The board is labeled with NB3029_MB_U_V4 and the FRU is 5B21C22573
The machine is a Lenovo Ideapad 5 Pro 16ACH...