Hi i've laptop hp 15
asl50 la-c921p
this old bios and it gives black screen
thanks
asl50 la-c921p
this old bios and it gives black screen
thanks
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Re: Hp 15 la-c921p
Hi there! I have same problem. maybe it is videochip? but its comes with cpu together...
or if its a bios, we should find a working sample with new version and grab it from the chip, right? have you found one?Comment
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Re: Hp 15 la-c921p
so, i've solved the problem.
you should use standard hp's application for BIOS upgrade, and choose there an option - save BIOS (for advanced users). then, need a blank flash drive with fat32. copy all files with names *.bin and *.s12 to the flash drive, root. then put flashdrive in usb of broken HP laptop.
put away adapter and battery. press on the keyboard windows+B, hold, plug in the charger, and then, keep pressing all these buttons, press Power. after it turns on - release buttons.
bios will upgrade.Comment
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Re: Hp 15 la-c921p
Thanks for sharing this information. I am sure it will be valuable to HP users.
So I am understanding that the Bios battery is what upgrades the bios if both battery and adapter is disconnected.Comment
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Re: Hp 15 la-c921p
lab10 how did you see SAVE bios for asdvanced user if laptop is with black screen ? donwloading update from hp site , simple gives me the insydeflash.exe , extracting it , there is the crisis recovery folder , and some bin files . wich files did you had , becaseu outside crisis folder there are around 4 bins , and insyde the recovery folder there are many files.Comment
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Re: Hp 15 la-c921p
the insydeflash create the penitself , nice
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Re: Hp 15 la-c921p
Hp 15 la-c921pComment
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Re: Hp 15 la-c921p
thanksComment
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Re: Hp 15 la-c921p
thanksSSSSSSSSComment
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Re: Hp 15 la-c921p
try this bios orignal backupComment
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Re: Hp 15 la-c921p
thank uComment
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Re: Hp 15 la-c921p
thaaaaaanxComment
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Re: Hp 15 la-c921p
thanksssssssssComment
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Re: Hp 15 la-c921p
Hello, I need bios Sio KB9022 Q
Thank all!!!!Comment
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Re: Hp 15 la-c921p
ThanksssssssssssssssssComment
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Re: Hp 15 la-c921p
Hello, I need bios Sio KB9022 QComment
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Re: Hp 15 la-c921p
thanksssssssssssssssssComment
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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 am requesting urgent assistance to unbrick my laptop, a rebranded TongFang GK7MRFR chassis. The laptop is completely dead following a faulty in-OS EC flash attempt.
I have successfully used a CH341A programmer and can read/write/verify both flash chips, but using my backups/extractions has failed to restore power. The root cause is likely a corrupted Intel Management Engine (ME) region or an incompatible EC/BIOS pairing. System & Hardware Details- Barebone / Chassis: TongFang GK7MRFR
- MB: MB: GK5MP5X V1.0 Prod :GK5MRFV10T04201310281
- Rebrand: PC Specialist
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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... -
Product Name: Razer Blade 15 (2022)
Product ID: RZ09-0421
Motherboard: CH580
BIOS Versions I work with: 2.02 & 2.06
Bios File Size: 32,768 KB
Dear Forum Readers!
I'm looking for a BIOS modder or anyone with experience who would give me suggestions about my razer blade's BIOS settings.
I can view and edit the content of the BIOS .bin file with AMIBCP BIOS editor.
The BIOS files I'm working with are from badcaps.net and those are CLEAN BIOS files (anyone can find it with the search string: RZ09-0421).
!!! MY RAZER BLADE...11-24-2025, 05:52 PM
Comment