UEFI BIOS corrupt

[AJ12UK]

Hello,

I have a HP DV3-4100SA Laptop, running Windows 7 HP 64-bit. I noticed a BIOS update was available, so I downloaded it and proceeded to install it. The long and short of it is that it froze my machine, and a black screen is shown when I power the Laptop on – the caps lock key is ‘blinking’.

I did a bit of looking around, and downloaded the system diagnostics UEFI from http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?os=4063&lc=en&cc=uk&dlc=en&sw_lang=&product=4326... (

sp52407.exe) / http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-93497-1&cc=uk&dlc=en&lc=en&...=  softpaq I think it’s referred as?

I formatted my USB Flash Drive to  FAT 32 and re-named it HP_TOOLS, then ran the UEFI installer, and it installed to my USB Flash Drive, as the HP_TOOLS partition does not exist on my laptop’s HDD.

Upon installing/extracting the UEFI program, c:\swsetup\sp48935 exists. In this folder, all there is is the .exe for the UFEI setup.

Now, onto the HP_TOOLS (i.e my FAT 32-formatted USB Flash Drive. There is a Hewlett-Packard folder. Inside this, there are two folders: BIOS and BIOSUpdate.

The BIOS folder contains three folders: Current, New and Previous. All three are empty.

The BIOSUpdate folder contains the following files:

CryptRSA.efi

CryptRSA32.efi

HpBiosUpdate.efi

HpBiosUpdate.s09

HpBiosUpdate.sig

HpBiosUpdate32.efi

HpBiosUpdate32.s09

HpBiosUpdate32.sig

I am not sure if there is meant to be one, but there is no SystemDiags folder.

Likewise, I am not sure if these are meant to exist on a non-business Laptop, but, there are no .bin files, nor are there any .sig files.

So, with that said, I plugged my Laptop in to charge, then, I inserted the HP_TOOLS USB Flash Drive into an available USB port. Then I pressed down on the win key, and then the b key (so both are pressed down together at the same time). With those two keys pressed down, I then turn on my Laptop via the power button, and wait. Nothing happens. The ‘old’ BIOS file is meant to be restored, I believe, but the screen just stays black with the Caps key ‘blinking’.

It’s hard to count how many times the Caps key blinks to be honest – it looks to be a bright glow, then two blinks. From http://support.hp.com/us-en/document/c01732674, it does indeed look to be a BIOS corruption.

I have tried to be as descriptive as possible – if anybody could possibly be of assistance, I would be beyond grateful.

Have I missed a step? Or do I have to accept the fact I must send it off for repair to HP? Once again, I would be extremely grateful for any help anyone can provide.

[Mumbodog]

try this, download the bios update from here

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-102435-1&cc=uk&dlc=en&lc=en...

execute it with the flash drive connected, it should put the bios files in the HP_TOOLS partition.

report back what files it installed on the flash drive and in what folder.

[AJ12UK]

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@Mumbodog wrote:

try this, download the bios update from here

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-102435-1&cc=uk&dlc=en&lc=en...

execute it with the flash drive connected, it should put the bios files in the HP_TOOLS partition.

report back what files it installed on the flash drive and in what folder.

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Hello Mumbodog,

I cannot execute that file on the notebook directly, as, with the screen turning black as soon as I turn it on, there is no GUI to navigate, never mind getting into Windows. Thank you for your suggestion, however.

[Mumbodog]

I asked someone to look at your issue, hopefully they will post here in a day or two.

[AJ12UK]

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wrote:

I asked someone to look at your issue, hopefully they will post here in a day or two.

Mumbodog,

Thank you - that is appreciated. I contacted HP directly yesterday, and they advised me to send off my laptop for repair. I will hold out for a day or two and see what your person says.

Regards.

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[REDRIFLE]

this needs to be bumped, i have the exact same problem on my g62-435dx, caps lock blinks, computer turns off and back on, repeat.

[DoubleLSY]

I got the same issue with HP Pavilion Ultrabook 14-b042tu.

I think this happen when the UEFI partiton corrupted.

So the HP_TOOLS doesn't work as it suppose the UEFI partiton has been deleted.

And the corrupted UEFI partition prevent you to boot from the HP_TOOLS.

But I really don't know why UEFI partiton can affect the BIOS.

This doesn't make sense....

Also, the BIOS doesn't have the choice to choose which HDD I want to boot?

So it suppose you never install new OS to another HDD?

I think the only way can fix this is delete the UEFI partition first and then use the HP_TOOLS to recovery the BIOS.

I have not tried it yet as I don't want to dismantling it to get the HDD...

If someone got the soloution please let me know