Where can I find the 87A4.bin bios update

[AlainV1]

Hello all,

I have an all in one 27-dp0171 PC that has probably a corrupted bios. I was able to create a HP Tool USB jumpdrive but it is missing the 87A4.bin file to restore the bios. Please indicate where I can find the file. 

Thank in advance.

[Jack4561]

Hello, Alain

You can find the 87A4.bin file for your HP All-in-One 27-dp0171 PC, you can follow steps:

Visit the HP Support Website: Go to the HP Software and Driver Downloads page.
Identify Your Product: Enter your PC model (HP All-in-One 27-dp0171) and select your operating system.
Download BIOS Update: Look for the BIOS section and download the latest BIOS update available for your model. This should include the necessary .bin file.

Hope that helps.

California Care

[AlainV1]

Thank you Jack for replying. I did already go to the Software and Driver page. There are only a driver for the video and one for the network. No bios update. Also, I need the 87A4.bin file, not a Softpack that requires the computer to be running Windows as the bios is corrupted and the computer does not even boot.

[Paul_Tikkanen]

Hi, @AlainV1 

Here is the link to the BIOS update file for the BIOS 87A4 SSID:

HP All-in-One PC 24-dp0000wa Software and Driver Details

Why it is listed under a different model series' support page which seems to only come with AMD processors is beyond me.

But if you look at the release notes and revision history release notes, it references Intel 

Here is an info link for how to create a BIOS USB flash drive if you don't want to or can't update the BIOS in Windows:

Updating the BIOS on HP Consumer Desktops outside of Windows 11| HP Computers| HP Support (youtube.c...

[AlainV1]

Thank you so much Paul for your links. I have been looking for days for that bios update.

I did build the bios update jumpdrive.

I could see that the computer attempted to read the jumpdrive but it could not display the bios screen. Does it mean that all hopes to rescue that computer are gone?

[Paul_Tikkanen]

You're very welcome.

According to the instructions that show up after you create the BIOS recovery drive is to plug the flash drive into the PC, turn it on and the PC should automatically find the BIOS files on the flash drive and recover the BIOS.

A couple of things you can try before you consider the PC a lost cause:

Shut down, unplug the PC and press the power button to drain all residual power.

Plug the flash drive in the USB port.

Plug the PC's power cord back in the wall socket, turn it on and see if that works.

Last, try making a BIOS recovery drive with the previous BIOS version.

The previous versions can be found under the Revision History section on the link I posted below all those release notes.

[AlainV1]

When I really flush any residual power and reboot, I can hear a 3 note jingle, I see that the computer tries to access the jumpdrive, the screen is powered but black. Then, nothing.

I tried an older version of the bios and got the same behavior.

So, it looks like the motherboard is not salvageable.

I will need to find a used one on Ebay.

Thank you so much Paul for your time.

[Paul_Tikkanen]

You're very welcome.

Sorry that nothing worked.

You should be able to find the motherboard part number you need from the parts list at the link below by entering your PC's serial number in the search window at the link below:

HP PartSurfer

[AlainV1]

Do you think I need to buy exactly the same motherboard as the original one? Not sure why there is a motherboard with the same physical dimension on ebay that is cheaper than the original one.

https://www.ebay.com/itm/395115497230?chn=ps&var=663696751289&norover=1&mkevt=1&mkrid=711-117182-372...

Especially, if you pick an I3 instead of the i5 that the original motherboard is equipped with? 

[Paul_Tikkanen]

The major reason I suspect is because the motherboard you picked out has an AMD Ryzen processor, not an Intel one.

AMD motherboards are usually less expensive.

Now, looking at the part number on the seller's listing, it shows a L90519-601 which is for a motherboard with a Ryzen 5 4500U processor.

HP PartSurfer

I actually have a notebook with that same processor, and it is the first PC I have ever owned with an AMD processor.

I have always shied away from AMD chipsets and processors, I must admit, I am truly impressed by my notebook's performance with 2 x 8 GB of DDR4-3200 MHz memory and that processor.

The only problem is I would have no clue if you can just swap that motherboard and use all of the cabling for the display and whatnot just as if you were replacing it with the original one.

There might be some minor differences which may be a show-stopper.

If you want additional help with that, I recommend you start a new post or pay the extra money and get the exact part number as the one from your PC's parts list.