Great post helped me a lot. I tried U85 for 440 G9 and it's working perfectly. Thanks mate, I appreciate that. Please create similar bios for HP ProBook 430 G8 T70 version with the new EC. A lot of people are having bios issues with that model. Thanks again
HP ProBook 440 G9 need bios + ec
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Hi guys,
first i'm very surprised with all of those hp bios VERSION where do you find them ?.
can someone please link me the bios + ec + whatever for my
HP ProBook 440 G9
S:/N 5CD225GJHK
P Model 6J3K6EC#ABF
Machin is halted on hp sure start detected an unauthorized change to the secure boot keys. and then just have esc or ok, then the nb reboots
I'll try to make an offline bios update.
Thanks so much.Leave a comment:
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board DA0X8SMB8H1 REV.HLeave a comment:
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My laptop won't turn on. Only the white LED is flashing. Can you help? I've already flashed a different BIOS and EC, but it didn't help. I'm attaching the original BIOS and EC.
HP ProBook 440 G9
Attached FilesLeave a comment:
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all goods ,,, my problem is fingerprint , i tried to install from hp and google it wont work..
can someone send the right installer or steps on how you fix the fingerprint to work?Leave a comment:
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Guys, please help me with Absolute and MDMI already tried doing it, the MDM was removed because there was no serial, and I already deactivated Absolute and installed Windows 10, but I can’t get the DMI tool to work.. please fix the bin file on your side that I tried.. thank you
SN: 5CD 2315 517Leave a comment:
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Guys, please help me with Absolute and MDMI already tried doing it, the MDM was removed because there was no serial, and I already deactivated Absolute and installed Windows 10, but I can’t get the DMI tool to work.. please fix the bin file on your side that I tried.. thank you
SN: 5CD 2315 517
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absolute persistent - solved..
company locked via internet set up - do i need to clean EC firmware?Leave a comment:
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Hello, so I tried reflashing the EC and did a read test via the CH341A and ASPROGEAMMER. Everything is fine. Soldering on the motherboard. The light flashes orange endlessly. The PC won't turn on. I unsoldered it and did a read test. Nothing on the EC model Gigadevice 25B255EY1G.
Do I have to write the FFs in the software or not?
Can I lock the memory after writing?
Thanks for your help.Leave a comment:
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Bonjour,
j'ai voulu aller plus vite que la musique en faisant une sauvegarde du BIOS SPI et ROMEC. Résultat : j'ai perdu tout le programme de mon ECROM. Serait-il possible d'avoir un fichier ou c'est foutu ?
ci-joint fichier bios avec password
-carte mère ref DA0X8SMB8H1 REV:H
-HP PROBOOK 440 G9
-SN#5CD223D2BK
-PROD ID 6J3K6EC#ABF
Hello,
I wanted to get ahead of the game by backing up the SPI and ROMEC BIOS. As a result, I lost my entire ECROM program. Would it be possible to get a file, or is it ruined?
Attached is the BIOS file with password.
-Motherboard ref. DA0X8SMB8H1 REV:H
-HP PROBOOK 440 G9
-SN#5CD223D2BK
-PROD ID 6J3K6EC#ABF
in English please...Attached FilesLeave a comment:
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by studdy05Hp Probook 450 G7 s# SCD0348W35 had a locked BIOS. Bought BIOS and EC chips off Ebay that were supposed to match this machine - the 450 G7. Flashed in the BIOS on chip i bought using a CH341. BIOS unlocked next boot. Some error to contact HP. Entered BIOS and reset to system defaults and rebooted. Machine worked fine but every cold boot the contact HP message popped and everything else worked as fine. Assumed the error was from EC chip not matching BIOS that i just flashed in. So i flashed in the EC that was supposed to match from the EBay chip i bought and instant brick.
Ive got...07-08-2025, 09:24 PM -
by macabookHello 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
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Channel: BIOS Requests ONLY!
07-24-2025, 02:17 PM -
by Vesko356First 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...-
Channel: BIOS Requests ONLY!
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by the_razI'm requesting a bios .bin for 2 of my hp Probook 450 G3's. Both of which I had forgotten the bios passwords. I stupidly flashed both of them with firmware "made" by the RCUnlocker software and I guess I shouldn't have. The last thing I did was flash both of them with RCUnlocker-fw thinking it would 100% work and left my programmer etc behind and won't have access to them for another 2 days so I figured I'd create a thread to see if I'd be so lucky that someone might have a working file laying around 😝
Laptop number 1:
Model: HP ProBook 450 G3
Motherboard part number:...-
Channel: BIOS Requests ONLY!
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by jbonavitaHi, 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...-
Channel: BIOS Requests ONLY!
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