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Re: pls Bios HP Probook 450 G5
HP Probook 450 G5
MB : DA0X8CMB6EO
REV : E
With original bios (no power, and led from AC connector blinking (9times), i try with another bios from forum and blinking (5 times). I will attach the original dump. ThanksLast edited by SMDFlea; 04-10-2023, 09:34 AM.Comment
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Last edited by SMDFlea; 04-10-2023, 09:34 AM.If you have found our forum useful please consider supporting us. Subscribe for a small monthly fee and receive extra benefits including our bios, boardview & schematic archive.
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Re: pls Bios HP Probook 450 G5
Same , no power, when press power (ac led blinking 9 times), and nothig.Comment
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Re: pls Bios HP Probook 450 G5
Hello,
please can someone unlock this bios, tried many dumps but goes black screen for 1 minute...
Last edited by SMDFlea; 04-10-2023, 09:34 AM.Comment
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Re: pls Bios HP Probook 450 G5
Thanks, you saved me!Comment
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Re: pls Bios HP Probook 450 G5
hello....can someone help clean my bios.Last edited by SMDFlea; 04-10-2023, 09:34 AM.Comment
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Last edited by SMDFlea; 04-10-2023, 09:34 AM.If you have found our forum useful please consider supporting us. Subscribe for a small monthly fee and receive extra benefits including our bios, boardview & schematic archive.
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Last edited by SMDFlea; 04-10-2023, 09:34 AM.If you have found our forum useful please consider supporting us. Subscribe for a small monthly fee and receive extra benefits including our bios, boardview & schematic archive.
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If you have found our forum useful please consider supporting us. Subscribe for a small monthly fee and receive extra benefits including our bios, boardview & schematic archive.
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Re: pls Bios HP Probook 450 G5
Hi,
please help unlock BIOS.
HP ProBook 450 G5
Serial: 5CD8139760
Product: 1LU56AVLast edited by SMDFlea; 04-10-2023, 09:34 AM.Comment
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Re: pls Bios HP Probook 450 G5
tried a lot of.
[edit]
ok, forgot it. It doesn't work for me as it requires removing and re-flashing EEPROM. I don't have the hardware for that. I extracted my BIOS using HP recovy flash tool but this file does not work with RCUnlocker. Tried a new downloaded BIOS from HP side, this file works fine in RCUnlocker, but i cant flash my BIOS because it's protected by settings.
See BIOS settings attachment for details.
HP support offered my to change the whole mainboard for only 250$
Last edited by SMDFlea; 04-10-2023, 09:34 AM.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... -
Hi Guys
I need help repairing/rebuilding the BIOS for an HP ProBook 630 G8 with no display.
I have read the BIOS chip twice using a CH341A and a WSON8 probe. Both reads match exactly, so I believe the dump is reliable.
Machine details found from my original BIOS dump:
Model: HP ProBook 630 G8 Notebook PC
Platform: T72
Current BIOS: T72 Ver. 01.12.00
System board ID: 87EA
KBC Version: 33.22.00
CPU: Intel Core i5-1145G7
BIOS chip: Macronix MX25L25673GZ4I-08G
Chip size: 32MB / 33,554,432 bytes
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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 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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Sorry for the long story. I have a Dell Latitude 5530 (i7) laptop (South Peak 15 MLK MB DDR4 203102-1 FK8VG$JA) with an admin BIOS password that I want to remove. Service Tag: HYKFPT3. Other than that the laptop worked OK.
I found a CH341A Black and went looking for the BIOS chip on the motherboard. After trying to read one chip that was a firmware chip but not the BIOS I think I found the BIOS chip labeled Winbond 25Q256JVEN. Altogether I think I found 4 different firmware chips in the laptop. The BIOS chip is a WSON8 6x8. I used the CH341A, NeoProgrammer, and a cheap pogo pin clip...
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