HP 15 bs DKL50 LA-E802P

[SI3MAR2000]

I think DIS GRF has a problem, I removed PLV1 and PLV2 and unsoldered PJW2 (dramrst) to disable dis grf, but no voltage on PLG1. Can anyone tell me this is a good method to convert (M.B: DKL50 LA-E802P Rev: 1.0) to uma

[Gian89]

Hi everyone - this board has been so resourceful for me! I didn't think I'd ever have to flash my BIOS, but here we are.

Model 15-bs143tu

S/N: CND8073FP0
ProdID: 3EV30PA#ABG
Board model number: DKL50 LA-E802P REV 1.0
BIOS chip: 25Q64JVSIQ

Perhaps I got lucky - perhaps the bin data isn't correct - but I struck gold on my first attempt with the CH314a programmer without the need to reseat, and attached is the saved data.

Really appreciate the support with this!

[hoaca388]

Hi everyone - this board has been so resourceful for me! I didn't think I'd ever have to flash my BIOS, but here we are.

Model 15-bs143tu

S/N: CND8073FP0
ProdID: 3EV30PA#ABG
Board model number: DKL50 LA-E802P REV 1.0
BIOS chip: 25Q64JVSIQ

Perhaps I got lucky - perhaps the bin data isn't correct - but I struck gold on my first attempt with the CH314a programmer without the need to reseat, and attached is the saved data.

Really appreciate the support with this!

HP Notebook - 15-bs143tu
BID _ 08328

[Gian89]

HP Notebook - 15-bs143tu
BID _ 08328

Thank you so much!! Now for the painful part..... reassembling this laptop where for the life of me, I don't understand why the BIOS chip is on the back of it!

I'm still overwhelmed by the support shown by users on this forum - it's honestly greatly appreciated. It's not much, but I've donated what I was able to part with Thanks again!

[mazloum]

hi every body , i have HP Notebook - 15-bs115dx

p/n= 3MP69UAR#ABA
S/N= CND8077FWR
15-BS115DX
black screen after bios update:
if please, can anybody help me

[mazloum]

there is something wrong happened during desolder, because i restored my old bios, but all i get is 5 long and 3 short badcaps, here is the picture if someone can determine what i have done incorrectly

[m1ch43lzm]

Try, BIOS extracted from HP website with serial/win key inserted

HP Notebook - 15-bs115dx

BIOS ver. F.75
BID 08328
S/N CND8077FWR
DMI 210000-21103F

[mazloum]

Try, BIOS extracted from HP website with serial/win key inserted

HP Notebook - 15-bs115dx

BIOS ver. F.75
BID 08328
S/N CND8077FWR
DMI 210000-21103F

thank you but i did already with the same capslock pattern

[m1ch43lzm]

there is something wrong happened during desolder, because i restored my old bios, but all i get is 5 long and 3 short badcaps, here is the picture if someone can determine what i have done incorrectly

You accidentally removed a resistor near the BIOS, 15 ohm, i marked it here

[mazloum]

You accidentally removed a resistor near the BIOS, 15 ohm, i marked it here

you are life saver, thank you very very much,

[valerio_vanni]

Hi everyone,

I have a notebook that is bricked after BIOS update. Windows UI part went fine, after reboot updating windows appeared (write and verify didn't show any error), but after automatic reboot the screen has always been off. External monitor too.
Win+B and Win+V with recovery bios on usb pen failed, nothing ever appears on monitor.

BIOS version that bricked: F.75 Rev.A 17 mag 2024
https://ftp.hp.com/pub/softpaq/sp153001-153500/sp153030.exe

Model: HP 15-bs199nl
ProdID: 3QS09EA#ABZ
SN: CND8105C1D

MB: DKL50 LA-E802P Rev: 1.0 2017-06-23

BIOS chip seems to be this:
AH1747
25864CSIG
E82456

I post also a picture, I'm not sure about CSIG or CS1G:
https://drive.google.com/file/d/1LAb...ew?usp=sharing
Is it a SOIC8 or other? Should I measure its size?

What tool do I need to read/write on it?
It seems that a clamp can be applied. I'm not able to desolder and resolder chips, I'd like to try with clamp and then if it doesn't work I will pay someone who is able to do it.

For BIOS backup:
Original drive is damaged but still accessible. I looked into C:\SWSETUP\SP153030\, but inside I only find an Insydeflash.exe. In temporary locations, nothing that resembles a bios backup.
In UEFI partition I find an HP\BIOS directory, with inside Current - New - Previous.
These have the date of failed flashing. I attach the 8 MB file from Previous folder.

[m1ch43lzm]

BIOS chip seems to be this:
AH1747
25864CSIG
E82456
...
What tool do I need to read/write on it?
It seems that a clamp can be applied. I'm not able to desolder and resolder chips, I'd like to try with clamp and then if it doesn't work I will pay someone who is able to do it.

BIOS chip model is GD25B64C (bee not eight), cheapest programmer available is CH341A, yes, SOIC8 clip which comes with most CH341 kits will work, but it may take some tries to attach it properly, sometimes those clips don't make a good connection

For BIOS backup:
Original drive is damaged but still accessible. I looked into C:\SWSETUP\SP153030\, but inside I only find an Insydeflash.exe. In temporary locations, nothing that resembles a bios backup.
In UEFI partition I find an HP\BIOS directory, with inside Current - New - Previous.
These have the date of failed flashing. I attach the 8 MB file from Previous folder.

Unfortunately that backup is incomplete, it's missing the S/N and the ME region, I assume the "New" folder is empty and the "Current" folder has the broken F.75 version (also without S/N or Win key)
Read the existing contents on the BIOS chip with the programmer once you buy it and attach it here

[valerio_vanni]

Yes, New is empty and I attach "Current".
So it failed also during backup?

Now I begin searching for tools.