first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
use BCU
Serial Number: 5CD8211QXS
Product #/SKU: 1LU57AV
CT Number: PGWGF048JAU16K
Description: HP ProBook 450 G5
BuildID: 17WWR4BT601#SABH#DABH
Feature Byte: 3X476J6b7B7J7M7Q7W7m7s9AaBapaqauawbhcAdUdpdqfXgd.DG
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pls Bios HP Probook 450 G5
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Hi friends need help in unlocking bios password for ProBook 450 g5 core i 3 with the S/N 5CD838C8GS . Here attached the original bin
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try..Leave a comment:
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Thread merged.Please post the laptop serial number -> https://www.badcaps.net/forum/troubl...before-posting
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HI. Need to remove the BIOS password. Original BIOS bin file attached to this message. Thanks!Leave a comment:
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HP probook 450 g5 / SN; 5CD8458HP3
MB;;DA0X8CMB6E0
PROBLEM NO Display
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- HP Probook 450 G5/ S/N 5CD8458HP3
MB/ DA0X8CMB6E0/ problem/ Power on after off
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- HP Probook 450 G5/ S/N 5CD8458HP3
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RULES UPDATE for BIOS requests/offers AVOID BANNING, READ BEFORE POSTING
https://www.badcaps.net/forum/troubl...before-posting
You MUST:- Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://badcaps.net/forum/showthread.php?t=88758 )
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HP PROBOOK 450 G5/ MB.no /DA0X8CMB6E0 ? POWER ON AFTER OFF
Attached FilesLeave a comment:
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RULES UPDATE for BIOS requests/offers AVOID BANNING, READ BEFORE POSTING
https://www.badcaps.net/forum/troubl...before-posting
You MUST:- Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://badcaps.net/forum/showthread.php?t=88758 )
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can u please fix this bios for hp probook 450 g5 hang on hp onlyAttached FilesLeave a comment:
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TRYLeave 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,
Iโm 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, Iโm 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. Hereโs a full breakdown:
๐งฉ 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 ๐
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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