Re: pls Bios HP Probook 450 G5
a lot of thanks, you save me
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Re: pls Bios HP Probook 450 G5
You can do it yourself with RCUnlocker:
https://www.badcaps.net/forum/showth...ght=rcunlockerLeave a comment:
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Re: pls Bios HP Probook 450 G5
Hi also this machine has no display
brand: Hp 450 g5
product id: 2rs06ea#bh5
serial: 5cd80725gz
board no: Da0x8cmb6e0 rev:e
attachedis the original backup file.
Plizzz clean me this file plisssLeave a comment:
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Re: pls Bios HP Probook 450 G5
hello everyone, I have a problem with a 450 g3, I think I made some mistake because I' ve done a backup of his locked bios and try to unlock it with no result.. but now whet I try to insert back on the pc the original one doesn' t work! maybe there is something wrong with the backup, I don' t know.. Is there a method to make a clean bios? how can be do?
Now I have found on web a bios of a 430 g3 that works but take a minute before hp logo
I' ll attach the originalLast edited by SMDFlea; 03-10-2023, 01:23 AM.Leave a comment:
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Re: Need unlock HP ProBook 640 G5 8TH
>good evening, I have another probook 450 g5 to unlock, I found the hp unlocker tool and try it, but it had removed only the administrator password and not the post password.
can anyone help me again? thanks
I haven't understand how to use hex to remove password yet.. sorry
Last edited by SMDFlea; 04-10-2023, 09:34 AM.Leave a comment:
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Hp 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 -
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 -
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... -
I'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:... -
Hi, 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...
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