model name - HP EliteBook 840 G5
SN - 5CG8423YJR
PROID - 3WQ23EC#ACJ
board name - 6050a2945601-mb-a01
plz repair this bios
SN - 5CG8423YJR
PROID - 3WQ23EC#ACJ
board name - 6050a2945601-mb-a01
plz repair this bios
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GREETINGS FROM NAIROBI KENYA
a client brought it this hp 850 g5
it dint have bios chips onboard so i dont have the original dump...i have tried several bins on this thread but no post...i took some bios chips from a dead mobo and put on this alas i got display
but here is the catch...it says SECURITY VIOLATION......I PRESS OKAY it goes to cms reset page...i press enter the screen remains blank....i force shut the process is the same
i have attached this EC and MAIN BIOS
plus the machine details...kindly help
computro 6050A2945601 MB A01(A1)
850 G5
PRODUCT ID 4WH54EC#ABD
SN 5CG9038363
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Hp EliteBook 840 G5
Model: AX200NGW
SN#5CG0130N7N
PLEASE SOMEBODY SHOULD HELP ME UNLOCK THIS BIN, THE COMPUTER IT'S DISPLAYING BUT BIOS SETUP IS LUCKED AND WE NEED TO HAVE ACCESS TO IT TO ENABLE SOME FEATURES. BELOW 👇 IS BIOS. THANKS A LOTComment
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Hello Please i Need your Help. HP 840 G5 Black Screen Fans on high speed , ive got my bios here, can somebody help to repair ?Comment
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5CG9094RZD
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Hello everyone,
I have two HP 840 G5 laptops. One of them is missing the BIOS chip. The second one was fully functional — it powered on and worked properly.
I desoldered the BIOS chip from the working laptop, dumped its contents (I'm attaching the original BIOS dump from the second laptop), and flashed a new chip for the first laptop using that same dump. After this, neither of the laptops powers on anymore.
Now, both laptops have the same issue:- When turned on, the Caps Lock LED blinks 5 times,
- The CPU fan spins at maximum speed,
- After a forced shutdown (holding the power button for 10 seconds), the laptop turns off but then automatically turns back on after a few seconds,
- This cycle repeats endlessly.
What could be the cause? I flashed the same BIOS dump I extracted from the working laptop, made no changes — but after soldering it back, it no longer boots.
Could you please send the correct BIOS dumps for both of these models?- Laptop 1: M/B SPS: L15518-601, CT: PGWHT00WBBZ8QZ, SN 5CG9093W7B, Prod ID 2FA66AV
- Laptop 2: M/B SPS: L15518-601, CT: PGWHT00WBCDLHI, SN 5CG81516RB, Prod ID 2FA66AV
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hi everyone, if someone could help me to clean this bios, so I have a hp g840 g5 6050A2945601-MB-A01(A1), laptop starts no image 5 flash led , consumption 300 milliampere and 400 when the fan starts. I tried lots of main bios and I cleaned my bios by myself ,tried with or without DMI, same result. i don't try to flash the EC_bios in this machine ------- my laptop SN:5CG9185XQJ original EC and Main bios have been attached , thanks
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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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