here flash both. and you need to input your original DMI data, use BCU.
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is this possible build full bios and ec from hp site ? i got board with blank chip both ec & main. i already try some bios from previous page, get 1 bios that work but late display. already try to build with latest Q78, clean it but no luck. this bios take 1+ minute to display.
Maybe someone can help try this bios or help repair it
ThanksComment
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pls help me clean bios of
HP 840 G5 computro 605012945601 mb-a01
sn# 5cg82906frComment
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Hello, I have a 2FA56AV (i7 8550U + AMD RX 540) with bricked bios (no image, 5x CapsLock LED). I have since flashed different BIOS (both 16 and 32M) but the AMD GPU and touchscreen are not detected by Windows nor BIOS menu.
Can somebody please repair my original BIOS or provide working one from the same model so all the components work properly?
I cant find the proper bios anywhere.
SN: 5CG9287RC4Comment
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Okay so I fixed my BIOS by replacing the first half of the 32M file with data from another BIOS downloaded from the net. This way the GPU is detected and everything works properly.
I found out there is no touch on my laptop, the screen was probably replaced with no touch one.
I am including both 16M and 32M dump files that work and also support the AMD GPU. It should work on models 2FA50AV, 2FA52AV, 2FA54AV, 2FA56AV and 2FA58AV.
I have also cleaned the ME region for others to use, but did not verify if it is working.Comment
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Hi. I had a similar situation with the touchscreen. It did not work until I added all the information, serial numbers, feature byte from the sticker on the back of the cover. This can be done when the bios is in engineering mode, or with HP BIOS Configuration Utility (BCU)Comment
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hello. i have this hp elitebook 840 g5 . when it comes on there is no display and after a while the spines at max. if someone can help me.
SN: 5CG82426FZ
ProdId: 3YH22UC#ABAComment
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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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Pls help me rebuild this bios
HP EliteBook 840 G5 6050a2945601-mb-a01
S/N 5cg90964m2Comment
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HP 840-G5 NO DISPLEY ISSUE
I hv another file from this platform..now laptop hv late displey issue and tow more erors.
can anybody fix my old backup file which hv no displey..ihv attached the3 file and part no. and sn no.
THANKS.Comment
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Need help, I have Hp 840 G5, no display, fan goes in max Bios Chip: MX25L25673GZ41-08Comment
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SOMEONE help to do me clean for hp elitebook 840 g5 computro 6050a2945601 mb a01
SN 5CG9200WK3Comment
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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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Hi guys,
If someone would be able to provide some expertise, I'd be very grateful.
BIOS Corruption - Cause
So I managed to corrupt my machine by installing linux and enrolling custom secure boot keys. I did choose to enroll the Microsoft keys as well, to prevent any potential bricking due to 3rd party drivers from HP being signed with those keys.
After doing that, and rebooting(it did boot, powerLED, fanspin etc.), the laptop did not give any video output on the LCD or video connectors. I think I was able to get in BIOS and trigger the beeper by pressing ESC.... -
Greetings badcaps community,
I havent done this for a long time and want to start it all again, after some evil and annyoing illness.
So I apologize in advance, if some phrases might sound a bit like gibberish or illogical to you.
Im trying my best to fully describe what I plan to achieve and hope I was choosing the right sub-forum for my new adventure.
I have a Elitebook 820 G1 and a Elitebook 840 G2 here.
These ask for a password when entering the BIOS, but boot just fine from the internal SSD.
I learned that desoldering...10-29-2024, 06:03 AM -
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,
I have an EliteBook 850 G5. After a Windows update, including a BIOS update, the notebook turns on, but the screen remains black, and the fans spin at high speed—nothing else happens.
I assume the BIOS update failed, so I searched for the BIOS chip.
I found a Winbond chip located between the RAM and the hard drive, which has a size of 32 MB.
However, the BIOS update available on HP's website is only 17 MB in size. I used the update version that was previously installed when the notebook was still working.
Can the corrupted... -
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...
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