Working dump, but not clean.
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hp probook 440-g8
Sn : #5CD20109B5
proid : 530J5PC#ACJ
board part no : DAX8QMB28A0 REV A
problem : bios lock
ill attached EC bin onlyComment
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hello guyz i have an hp probook 440 G8
serial: 5cd2087vpk
prodid: 3a5g8ea
boardno: dax8qamb8d0 rev d
it has a bios power on password.
kindly help me remove it
tried rc unlocker and no luck.Comment
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Hi everyone, i have a serious problem with a HP Probook 440 G8, i was changing the bios image and two pins of ec rom were damaged, so, i used another memory but using another bios image, the laptop was corrupted by bios incompatible serials and i can´t made a backup, how ca i recover the bios roms to repair the laptop?
Thank you in advance.Comment
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Help please!! I just bought a secondhand HP Probook 440 G8 and it has a password in BIOS. What can I do?Comment
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Buy an SPI programmer to extract the bios file then use RC unlocker to unlock it.
There are many types of SPI programmers, but the cheapest is CH341A (cheapest but not best ).
https://www.youtube.com/results?sear...mer+how+to+use
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Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
https://www.badcaps.net/donateComment
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Hi. I am trying to unlock the bios password on a 440 G8 laptop using CH341a and needle cable probe (not having to desolder chip) but no success. Seems to have read the chip (EC ROM GD25B256DYIG) correctly but once unlocked with RC Unlock and rewritten, not working. I have also learn that BIOS password is not stored on SPI ROM (Winbond 25Q256JVEQ) but on EC ROM. Please, need some help. Thanks in advance.Comment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
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Hi peste. Here are the original dump files and info
SN: 5CD209B52C
PROD ID: 2R9E6EA#ABE
MB: DAX8QIMB8B0 REV B
Comment
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Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
https://www.badcaps.net/donateComment
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plzzz clean passe WordComment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
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plz Clear passe Word bios
hp 440 g8 DAX8QAMB8D0 REV DComment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
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plz Clear passe Word bios
hp 440 g8 DAX8QAMB8D0 REV DComment
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You MUST post the serial number. If it is scratched or not availble say so . https://www.badcaps.net/forum/troubl...before-posting
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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 -
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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Hello everyone,
I recently bought a non-working Asus Zenbook Pro Duo OLED UX8402ZA that was listed for parts only. The seller mentioned that it had no display output but that the charging lights worked.
When the laptop arrived (without a charger and SSD), I connected a charger and confirmed with a multimeter that it was charging the battery. However, when I tried to power it on, only the backlight of the secondary display came on. There was no image, and it didn’t boot into the BIOS.
I decided to try flashing a new BIOS, but since I didn’t want to desolder... -
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...
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