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Hello everyone! After hardware repairing HP elitebook 840 g5 laptop, I found out that the bios and ec chips were empty. I flashed the first ones I found from this teme, and the laptop turned on, but it displayed a security error. What dumps can I flash? How can I enter the serial number and other information from my laptop? ProdID 4QQ96UC#ACB, SN# 5CG92457CN -
hp elite book 840-g5
sn : 5CG81346H4
problem : plz find out the attachment image , can anyone clear this error msg
this error showing , after press enter sys getting restarting and not booting sirAttached Filesif you find these attachements useful please consider making a small donation to the site
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bro fix ffo me the ec chip file coz its different from ur giving me, use my fileLeave a comment:
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hello everyone help me fix my bios i updated my laptop but refused to dislay again here both chip files,SERIAN NUMBER IS 5CG92442CF 840 G5Leave a comment:
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Hello everyone
I have an HP Elitebook 840 G5
problem : after laptop freeze and force shutdown, when powering on there's no display and caps/num lk blinking 5 times and wireless light orange then the fan speed increases until full speed and it stays like that.
what I've done so far : after pulling a dumb from the bios chip, ME seems to be corrupted as ME analyzer found an error. I managed to clean ME myself by following the extensive guide on winraid but after soldering the bios, power light keeps blinking white and orange. I also tried with known working older bios dump that I pulled from my machine but same problem. so far I’ve only worked with the main 32MB BIOS chip. I haven’t dumped the smaller EC chip yet.
I'm attaching the files I've used so far. I'd really appreciate it if someone looks into this and points me in the right direction.
Serial: 5CG8443BQ0
Sku: 3TU06PA#ABG
Board number: computro-6050A3038201-mb-a01
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Help Need Bios
Problem: No Display & Caps LED 5 times Blinking
HP EliteBook 840 G5
Product ID: 4YM00US#ABA
SN#: 5CG9012y20
BOARD CODE: COMPUTRO-6050A2945601-MB-A01(A1)
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Help Need Bios
Problem: No Display & Caps LED 5 times Blinking
HP EliteBook 840 G5
Product ID: 4YM00US#ABA
SN#: 5CG9012y20
BOARD CODE: COMPUTRO-6050A2945601-MB-A01(A1)
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Hey, I have an Hp Elitebook 840 G5 that i tried to flash. Stupidly i flashed the main chip (32mb) and when i went to boot the laptop my caps lock and f10 key were flashing. Stupidly again i did not save the backup so i couldnt reflash the original one. I took one from this forum and tried flashing it thinking that would solve my issues but now im greeted with the f11 key light, a black screen and full fan speed. What can i do to fix it? i've attached the current bin file.
ProdID: 5DZ24UP#ABA
SN:5CG9168ZDRLeave a comment:
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Help Need Bios
Problem: No Display & Caps LED 5 times Blinking
HP EliteBook 840 G5
Product ID: 3UH87UC#ABA
SN#: 5CG9012614
BOARD CODE: COMPUTRO-6050A2945601-MB-A01(A1)
Attach Backup File
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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... -
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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