HP 250 G6 BIOS

[domenico.rao]

Hi, please correct this bios for me, thanks
hp 250 g6
sn CND80639X1
prodid 2SX49EA#ABZ

[hoaca388]

Hi, please correct this bios for me, thanks
hp 250 g6
sn CND80639X1
prodid 2SX49EA#ABZ

HP 250 G6 Notebook PC

BID : 0832E

[domenico.rao]

I just have to write bid 0832E?

[hoaca388]

I just have to write bid 0832E?

Yes.

[domenico.rao]

thanks

[joki89]

HP 250 G6
SN: CND7253ZHW
PRODID: 1WY51EA#ABB

mb: CSL50/CSL52 LA-E791P REV: 1.0

I have this bios and after update newest bios version, my screen was black and its not start anymore.
Please fix it if you can, thanks.

[SMDFlea]

Thread merged.

[hoaca388]

HP 250 G6
SN: CND7253ZHW
PRODID: 1WY51EA#ABB

mb: CSL50/CSL52 LA-E791P REV: 1.0

I have this bios and after update newest bios version, my screen was black and its not start anymore.
Please fix it if you can, thanks.

HP 250 G6

[Leolo79]

Hi everyone,

I'm the latest one to join the ever growing group of thousands of people screwed by the horrible HP bios upgrade that bricks your laptop

Anyway, I'm currently waiting for the 8 pin clamp adapter to arrive in the mail, because I'm extremely bad with soldering irons. I'm trying to reflash the eeprom without desoldering the chip.

I've taken the HDD out of the laptop, and I've inspected the HP folder in the EFI system partition. I've found a log file that hilariously says that everything went perfectly fine! (hahahah, YEAH, SURE!) and a "reconstructed" binary file.

Is this binary file ready to be flashed using the "clamp" adapter and the programmer? Or should I try to dump the bios chip before flashing anything??

The log says the following:

2025-04-22 19:57:54  EFI HP BIOS Update 3.9.4.0 Started
2025-04-22 19:57:54  [L]> System ID: 8328
2025-04-22 19:57:54  Failed Loading EFI_HP_BIOS_IMAGE_INTERFACE_PROTOCOL2_GUID(Not Found)
2025-04-22 19:57:54  HP BIOS Image Interface Protocol Version 2.0
2025-04-22 19:57:54  [L]> EFI_HP_BATTERY_CONTROL_PROTOCOL_2010 is present.
2025-04-22 19:57:54  Type 11 1 tables
2025-04-22 19:57:54  Type (000000000000000Bh), Len (0000000000000005h), Handle (000000000000001Ch), String count (0000000000000009h)
2025-04-22 19:57:54  HPBATDET: Environment Variable not found.
2025-04-22 19:57:54  BATDET: Date 4//18//2017
2025-04-22 19:57:54  BATDET: 0
2025-04-22 19:57:54  [L]> BATDET: HP
2025-04-22 19:57:54  [L]> Found 1 Absolute Pointer Protocol(s)
2025-04-22 19:57:55  [L]> SetBestGopMode to 0: 1366x768
2025-04-22 19:57:55  [L]> 0 UART device path node found.
2025-04-22 19:57:55  All Required Protocols Located
2025-04-22 19:57:55  HpBiosUpdate.Mode = 0
2025-04-22 19:57:55  WRITE_BB = 0
2025-04-22 19:57:55  Current Directory = EFI\HP\BIOSUpdate\
2025-04-22 19:57:55  [L]> System ID: 8328
2025-04-22 19:57:55  SMBIOS Init Success
2025-04-22 19:57:55  SystemFamily = 1
2025-04-22 19:57:55  [L]> PlatformLang reported as en-US.
2025-04-22 19:57:55  [L]> Language Selected is currently (eng).
2025-04-22 19:57:55  Starting BIOS Update Process
2025-04-22 19:57:55  Setting BIOS Update Token
2025-04-22 19:57:55  Getting BIOS Detail Information
2025-04-22 19:57:55  IsBiosSixDigits = 0
2025-04-22 19:57:55  BIOS Returned BiosID '08328'
2025-04-22 19:57:55  QueryImageDetail: 4K Block Size detected.
2025-04-22 19:57:55  Skip Addresses:
2025-04-22 19:57:55  Entry 0: Address 0x0: Size: 0x200000
2025-04-22 19:57:55  Entry 1: Address 0x210000: Size: 0x24000
2025-04-22 19:57:55  Entry 2: Address 0x244000: Size: 0x20000
2025-04-22 19:57:55  Entry 3: Address 0x657000: Size: 0x9A000
2025-04-22 19:57:55  Entry 4: Address 0x6F1000: Size: 0x10F000
2025-04-22 19:57:55  Loading BIOS Image
2025-04-22 19:57:55  File name constructed: EFI\HP\BIOS\New\08328.bin
2025-04-22 19:57:55  Reading New BIOS Image EFI\HP\BIOS\New\08328.bin
2025-04-22 19:57:55  Getting BIOS version from file image
2025-04-22 19:57:55  Bios Version = F.77
2025-04-22 19:57:55  Verifying AC or Battery Power Status
2025-04-22 19:58:10  Verifying Binary match
2025-04-22 19:58:10  Loading Signature File
2025-04-22 19:58:12  Loading Password File if required
2025-04-22 19:58:12  BIOS Password not required.
2025-04-22 19:58:12  Writing BIOS Image
2025-04-22 20:01:33  Verifying Written BIOS Image
2025-04-22 20:01:33  VerifyImage: 4K Block Size detected.
2025-04-22 20:01:34  Skipping Verification Block 0 Address 0x0000000000000000 Size 0x0000000000200000
2025-04-22 20:01:34  Next BlockIndex 512, BlockAddress = 0x0000000000200000
2025-04-22 20:01:35  Skipping Verification Block 528 Address 0x0000000000210000 Size 0x0000000000024000
2025-04-22 20:01:35  Next BlockIndex 564, BlockAddress = 0x0000000000234000
2025-04-22 20:01:36  Skipping Verification Block 580 Address 0x0000000000244000 Size 0x0000000000020000
2025-04-22 20:01:36  Next BlockIndex 612, BlockAddress = 0x0000000000264000
2025-04-22 20:02:44  Skipping Verification Block 1777 Address 0x00000000006F1000 Size 0x000000000010F000
2025-04-22 20:02:44  Next BlockIndex 2048, BlockAddress = 0x0000000000800000
2025-04-22 20:02:44  Updating BIOS files
2025-04-22 20:02:44  File name constructed: EFI\HP\BIOS\Current\08328.bin
2025-04-22 20:02:44  Read file EFI\HP\BIOS\Current\08328.bin failed (Not Found)
2025-04-22 20:02:44  File name constructed: EFI\HP\BIOS\Current\08328.sig
2025-04-22 20:02:44  Read file EFI\HP\BIOS\Current\08328.sig failed (Not Found)
2025-04-22 20:02:44  File name constructed: EFI\HP\BIOS\Current\08328.s12
2025-04-22 20:02:44  Read file EFI\HP\BIOS\Current\08328.s12 failed (Not Found)
2025-04-22 20:02:44  File name constructed: EFI\HP\BIOS\Current\08328.bin
2025-04-22 20:02:44  File name constructed: EFI\HP\BIOS\Current\08328.sig
2025-04-22 20:02:44  File name constructed: EFI\HP\BIOS\New\08328.bin
2025-04-22 20:02:44  Will delete file EFI\HP\BIOS\New\08328.bin
2025-04-22 20:02:44  File name constructed: EFI\HP\BIOS\New\08328.sig
2025-04-22 20:02:44  Will delete file EFI\HP\BIOS\New\08328.sig
2025-04-22 20:02:44  EfiBiosUpdateLibEntry(): Result is 0x0
2025-04-22 20:02:44  Setting Flash Completion Status
2025-04-22 20:02:44  BIOS Update Process Complete
2025-04-22 20:02:44  BIOS Update Successful​

Here's the binary found in the hard drive (attached to this post)

[peste]

post merged..next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..
read the forum rules..
https://www.badcaps.net/forum/troubl...before-posting

[hobostove]

Always dump a backup of the original bios. It contains DMI information (serial number, model number, etc) and your windows key. Someone can use your dump to reconstruct a new bios with the right info moved over.

When you get your programmer, post the dump here. And read this for what info is needed for the post. https://www.badcaps.net/..bios-requests...read-before-posting

[Leolo79]

Thanks for your reply! Ok, I'll dump the chip as soon as I get my adapter and will report back!

[cap5una]

Hi, I need help fixing the bios, after the update it doesn't work anymore

hp 250 g6
sn CND7491QQY
prodid 2EV81ES#ABB

[SMDFlea]

Thread merged.

[Leolo79]

Hi everyone,

I've dumped the chip of my non-working laptop, and I've also dumped my sister's laptop, which is the same model.

I've noticed that there are many differences when viewed in an HEX editor, but I'm not sure which parts could be causing my laptop to fail to boot (it doesn't show anything in the screen, screen is black and the fan spins eternally)

Would it be possible to edit the binary file to just fix the corrupt parts and keep the working parts intact?

[peste]

Hi everyone,

I've dumped the chip of my non-working laptop, and I've also dumped my sister's laptop, which is the same model.

I've noticed that there are many differences when viewed in an HEX editor, but I'm not sure which parts could be causing my laptop to fail to boot (it doesn't show anything in the screen, screen is black and the fan spins eternally)

Would it be possible to edit the binary file to just fix the corrupt parts and keep the working parts intact?

post S/N, full name and model, motherboard model, product number,etc.

[Leolo79]

Ok, here are the details of the dumps inside the "two bios.zip" I posted:

"my-laptop-broken.bin" is a dump from my HP 250 G6 laptop that doesn't boot, with serial number CND7241YHW and platform BID 08328 updated to bios version F.77

"sisters-laptop-good.bin" is a dump from my sister's HP 250 G6 laptop that boots correctly, with serial number CND8470S6H and platform BID 08328 updated to bios version F.77

[flip971]

Hi to all.

I have an HP 250 G6 that won't boot after the infamous HP bios update...

My NB is: HP 250 G6
S/N CND80826HP
M/B CSL50/CSL52 LA-E791P Rev 2.0 2017-07-18
Added the corrupted bios in zip form
Added M/B codes

Thanks to all.

[peste]

Hi to all.

I have an HP 250 G6 that won't boot after the infamous HP bios update...

My NB is: HP 250 G6
S/N CND80826HP
M/B CSL50/CSL52 LA-E791P Rev 2.0 2017-07-18
Added the corrupted bios in zip form
Added M/B codes

Thanks to all.

you have everything you need at post #6.....08328


https://www.badcaps.net/forum/troubl...-0#post3496291

[flip971]

you have everything you need at post #6.....08328


https://www.badcaps.net/forum/troubl...-0#post3496291

Thanks for the reply.

Got "Invalid File Specified"...

[SMDFlea]

Thanks for the reply.

Got "Invalid File Specified"...

The files have been restored. Attached is your bios + DMI (serial number, feature byte etc.)

[flip971]

10X a lot 😊😊😊😊😊
Now the CH314 programmer didn't see the chip! 🤬🤬🤬

[flip971]

@SMDFlea: Finally all done! Thanks a lot.

[SMDFlea]

Grande :-)