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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
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Re: HP 15-BS588TU CSL50-CSL52 LA-E801P Rev:2.0 Bios
I compare this mother board with working board. All coil voltages are same. But this one no have display. I can't understand,hat is the problem.
I get this backup (#40) from that working board.Comment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
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Re: HP 15-BS588TU CSL50-CSL52 LA-E801P Rev:2.0 Bios
Csl50-csl52 la-e801p rev2.0 discreteComment
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Re: HP 15-BS588TU CSL50-CSL52 LA-E801P Rev:2.0 Bios
Thank youComment
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Re: HP 15-BS588TU CSL50-CSL52 LA-E801P Rev:2.0 Bios
CSL50-CSL52 LA-E801P Rev:2Comment
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↵
Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
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Re: HP 15-BS588TU CSL50-CSL52 LA-E801P Rev:2.0 Bios
Thank youComment
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Re: HP 15-BS588TU CSL50-CSL52 LA-E801P Rev:2.0 Bios
hi this bios is copy from original, Image appears after 20 seconds
Thank you..Comment
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Last edited by hardware1; 11-01-2022, 12:06 PM.----------------------------------------------------------------------------------------------------------------------------------------------------------------------
Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
all donations are welcome,
see the donate button at the bottom of the page, or
>>>>> click on this link to donate via PayPal. <<<<<
Every donation made will go towards server fees and maintenance costs.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------Comment
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Re: HP 15-BS588TU CSL50-CSL52 LA-E801P Rev:2.0 Bios
hi ineeed claer me late displayComment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
all donations are welcome,
see the donate button at the bottom of the page, or
>>>>> click on this link to donate via PayPal. <<<<<
Every donation made will go towards server fees and maintenance costs.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------Comment
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Hello,
please I need a dump bios or the way to have firmware with this informations:
laptop: hp 15bs041nk
Bios chip: winbond 25Q64JVSIQ
Knowing that, the CH341A Programmer shows 5 names of bios when detecting my own one between them W25Q64JV that I used to read and save dump
thank you for your intentionsComment
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Read the rules : https://www.badcaps.net/forum/troubl...before-posting↵
Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
https://www.badcaps.net/donateComment
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Post backup bios file and serial number .↵
Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
https://www.badcaps.net/donateComment
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thank you
backup bios file in attached file
serial number of laptop (i think you mean): CND8086NZX
motherboard: CSL50/CSL52 LA-E801P Rev : 2.0 2017-07-18Comment
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serial number :-CND8086NZX
DMI @ 210000-210FFF
Comment
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Hello everyone,
I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
🧩 Initial Issue- Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
- External display (HDMI) shows
07-24-2025, 02:17 PM -
Hello everyone,
I recently bought a non-working Asus Zenbook Pro Duo OLED UX8402ZA that was listed for parts only. The seller mentioned that it had no display output but that the charging lights worked.
When the laptop arrived (without a charger and SSD), I connected a charger and confirmed with a multimeter that it was charging the battery. However, when I tried to power it on, only the backlight of the secondary display came on. There was no image, and it didn’t boot into the BIOS.
I decided to try flashing a new BIOS, but since I didn’t want to desolder... -
First of all thanks to all of our members who have posted previously all methods posted here.
Please leave a comment if you find something new,or have anything else to add.
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Find by serial number,model number or series
If you know the laptop serial or model number go to HP support https://support.hp.com/us-en/drivers/laptops .
Enter the serial number or model number and click submit.On the next screen you will have to enter the OS
Operating system and OS version.If... -
Hi, my laptop wont boot at all
With original bios no POST, only LED lights
With alternative BIOS from model TP500LN (flashed via programmer) the notebook works again
Some issues
A- with bios from 500LN, it won't update from bios of model 500LA (from 500LN v203 to 500LA v300)
B- If updated from 500LN version 203 to 300, the battery stops being recognized
Things I tried
1- Update / clear ME: Took the non working bios, made a backup, and did this: https://www.badcaps.net/forum/troubl...theory/trouble... -
Hello, I have an old Dell G3 3579 (ST: 2WQ7LP2-8FC8) with a newer 8FC8 BIOS password. I have successfully attached to the flash chip (W25Q128JVSQ) on the motherboard with a CH341A programmer and made several modifications using Intel FIT (e.g., allow software SPI write) without bricking. I was also able to boot to a modified GRUB shell where I attempted to edit many BIOS security related options like BIOS Guard/Lock, Flash Signature Override, ME FW Image Re-Flash, etc.
Unfortunately, some of these modifications like to Intel BIOS Guard failed because it is fused into the PCH. Also,...
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