HP EliteBook 8460p bricked

[mohei]

Hello,

I was updating this system's BIOS (using the common windows installer from HP) when the system rebooted unexpectedly and didn't come up again.

Actually after turning on the caps/lock LED blinks and after a few seconds the system fan turns to full speed. Display is totally black.
I did a lot of research on this blinking issue - result is always the same: hardware failure --> send to HP.
But I'm sure that the hardware itself is ok (RAM replaced in both memory slots, removed wwan card, removed wlan card).

Is there a way to flash BIOS using a USB stick? I read some posts about extracting files from HP bios & press Windows+B while turning on.

Thanks for replies in advance!

Regards,


mohei

[GeorgettaCZ]

Hallo!

Guess, since it is already a year a go, that u got it sorted, but anyway... I was in kinda same situation couple months ago... I purchased USB chip programmer! I have exactly this one: https://www.aliexpress.com/item/CH341A-2...76447.html together with this chip seat: https://www.aliexpress.com/item/SOIC8-SO...80887.html

Then I simply dismantled the laptop, took out the mobo, desoldered the chip, clipped into the flasher... then put all back together and voila! Not 

Maybe you might have tried that... Should you have questions regarding the software or anything at all, feel free to ask.

Cheers

[JumboJet]

Hi GeorgettaCZ,

Looking at the solution you offered to the member with the bricked HP, I was wondering if your solution could be applied to an HP 450 g2 with a BIOS that prevents booting to hard drive.

Thanks in advance

JumboJet

[GeorgettaCZ]

Well, fisrt of all I would try to disconnect all the power sources, including the CMOS battery an leave it for couple minutes. Then I would start only on the AC adapter, no batteries. If the Caps blink persists with black screen and FAN full RPM, I would create the recovery USB and try either Win+B or all-four-arrows trick when turning on the laptop. Use one of them USB 2.0 on the RIGHT, not those on the left (by adapter jack). Come with results. It this did not work, the only way might be to desolder the BIOS chip and flash it manually. No worries, this technology is known and proved many times by many folks here. Its easy and its cheap, 3-5 USD max. plus waiting tome for the flasher to arrive.

Looking for your answer!

Good luck

[JumboJet]

Well, fisrt of all I would try to disconnect all the power sources, including the CMOS battery an leave it for couple minutes. Then I would start only on the AC adapter, no batteries. If the Caps blink persists with black screen and FAN full RPM, I would create the recovery USB and try either Win+B or all-four-arrows trick when turning on the laptop. Use one of them USB 2.0 on the RIGHT, not those on the left (by adapter jack). Come with results. It this did not work, the only way might be to desolder the BIOS chip and flash it manually. No worries, this technology is known and proved many times by many folks here. Its easy and its cheap, 3-5 USD max. plus waiting tome for the flasher to arrive.

Looking for your answer!

Good luck

Thank you for your leads. I will explore them. The Win+B combination did not work when I tried it 2days ago.

Thank you,

Jumbojet

[GeorgettaCZ]

Hi GeorgettaCZ,

Looking at the solution you offered to the member with the bricked HP, I was wondering if your solution could be applied to an HP 450 g2 with a BIOS that prevents booting to hard drive.

Thanks in advance

JumboJet

Hallo Jumbo!

According to my experience (23 years of IT support business and thousands of fixed laptops - I am certified HP service man for all the IT portfolio of HP, Dell, Lenovo)...it does not really matter if its Acer or HP or Fujitsu... The principals of the BIOS and EC is always the same. It only got more complex and vulnerable as well...

Yes, I am convinced that most of the problems that are not solvable by the USB stick and a key combo trick, are still solvable by "manual" flashing...

BUT! If you are still able to access BIOS but are not able to boot from a SATA0 device...a hard drive or SSD... I still might not be an issue with the BIOS it self. Motherboards' SATA controller, failed HDD surface, bad settings in the BIOS... mostly security settings (EFI...GPT...SecureBoot...)

450 G2 already have an UEFI-enabled BIOS. There are multiple reasons for why you are not able to boot...

Tell me more about your HW config, BIOS settings... so I'll be able to guess and suggest...

Regards

GeorgettaCZ

[JumboJet]

               

Hi GeorgettaCZ,

Looking at the solution you offered to the member with the bricked HP, I was wondering if your solution could be applied to an HP ProBook 450 G2 with a BIOS that prevents booting to hard drive.

Thanks in advance

JumboJet

Hallo Jumbo!

According to my experience (23 years of IT support business and thousands of fixed laptops - I am certified HP service man for all the IT portfolio of HP, Dell, Lenovo)...it does not really matter if its Acer or HP or Fujitsu... The principals of the BIOS and EC is always the same. It only got more complex and vulnerable as well...

Yes, I am convinced that most of the problems that are not solvable by the USB stick and a key combo trick, are still solvable by "manual" flashing...

BUT! If you are still able to access BIOS but are not able to boot from a SATA0 device...a hard drive or SSD... I still might not be an issue with the BIOS it self. Motherboards' SATA controller, failed HDD surface, bad settings in the BIOS... mostly security settings (EFI...GPT...SecureBoot...)

450 G2 already have an UEFI-enabled BIOS. There are multiple reasons for why you are not able to boot...

Tell me more about your HW config, BIOS settings... so I'll be able to guess and suggest...

Regards

GeorgettaCZ

Hi GeorgettaCZ,

I bought a used HP ProBook 450 G2 with a locked BIOS(password forgotten). I had read a lot of posts and watched YouTube videos with several solutions but the solutions appear to work on older model HP ProBook laptops and not on this one.

When I switch on, I see the black screen.
 I cannot boot to the hard drive whatsover, as the bios is locked.

The other attached pics show all that I can access. I have swapped the HDrv with another one, but no difference. The rest of the hardware seems fine when you run the checks.

I hope that gives you an idea of the laptop.

Thanks in advance.

Jumbojet.

[GeorgettaCZ]

Hi GeorgettaCZ,

Looking at the solution you offered to the member with the bricked HP, I was wondering if your solution could be applied to an HP ProBook 450 G2 with a BIOS that prevents booting to hard drive.

Thanks in advance

JumboJet

Hallo Jumbo!

According to my experience (23 years of IT support business and thousands of fixed laptops - I am certified HP service man for all the IT portfolio of HP, Dell, Lenovo)...it does not really matter if its Acer or HP or Fujitsu... The principals of the BIOS and EC is always the same. It only got more complex and vulnerable as well...

Yes, I am convinced that most of the problems that are not solvable by the USB stick and a key combo trick, are still solvable by "manual" flashing...

BUT! If you are still able to access BIOS but are not able to boot from a SATA0 device...a hard drive or SSD... I still might not be an issue with the BIOS it self. Motherboards' SATA controller, failed HDD surface, bad settings in the BIOS... mostly security settings (EFI...GPT...SecureBoot...)

450 G2 already have an UEFI-enabled BIOS. There are multiple reasons for why you are not able to boot...

Tell me more about your HW config, BIOS settings... so I'll be able to guess and suggest...

Regards

GeorgettaCZ

Hi GeorgettaCZ,

I bought a used HP ProBook 450 G2 with a locked BIOS(password forgotten). I had read a lot of posts and watched YouTube videos with several solutions but the solutions appear to work on older model HP ProBook laptops and not on this one.

When I switch on, I see the black screen.
 I cannot boot to the hard drive whatsover, as the bios is locked.

The other attached pics show all that I can access. I have swapped the HDrv with another one, but no difference. The rest of the hardware seems fine when you run the checks.

I hope that gives you an idea of the laptop.

Thanks in advance.

Jumbojet.

Hallo Jumbo.

I can see that despite the locked bios you can still chose F9 to change the boot drive. But I understand that locked bios is frustrating and irritating as well as limiting for settings.

If it was mine, I would desolder the chip, clip it in the USB flasher and erase/clean it with zeroes and then flash the data back in. Rumor has it that the bios password is in some newer models stored in a different chip than the bios itself. On the other hand, I had my friends' HP 4510s couple your ago, bios locked/password unknown. I bought a second hand broken mobo from the same model, replaced the bios chips and everything was fine. Anyway, the USB flasher is worth to have at home. It's cheap and it works!

Regards

[hbaragat]

Hi GeorgettaCZ,

Looking at the solution you offered to the member with the bricked HP, I was wondering if your solution could be applied to an HP 450 g2 with a BIOS that prevents booting to hard drive.

Thanks in advance

JumboJet

Hallo Jumbo!

According to my experience (23 years of IT support business and thousands of fixed laptops - I am certified HP service man for all the IT portfolio of HP, Dell, Lenovo)...it does not really matter if its Acer or HP or Fujitsu... The principals of the BIOS and EC is always the same. It only got more complex and vulnerable as well...

Yes, I am convinced that most of the problems that are not solvable by the USB stick and a key combo trick, are still solvable by "manual" flashing...

BUT! If you are still able to access BIOS but are not able to boot from a SATA0 device...a hard drive or SSD... I still might not be an issue with the BIOS it self. Motherboards' SATA controller, failed HDD surface, bad settings in the BIOS... mostly security settings (EFI...GPT...SecureBoot...)

450 G2 already have an UEFI-enabled BIOS. There are multiple reasons for why you are not able to boot...

Tell me more about your HW config, BIOS settings... so I'll be able to guess and suggest...

Regards

GeorgettaCZ