After installing the bios update I only have power led and CPU fan

[15-BS115DX]

 I changed the HDD for an SSD and everything started working perfectly when I went to download the drivers, the first one is Bios, I installed it and when I restored it, after this only i have  black screen,  the power LED and CPU fan is on and I tried all the methods they suggest and nothing
Please, if you have any method on how to repair this problem, send it to me, I am an Electronic Technician and I can change components or the main board if necessary.
Thank you very much for your help

[erico]

Try recovering to the previous working BIOS.

Connect the power adapter.

Hold down the Windows key + the B key at the same time.

Keep holding the keys down, press the power button and wait until the laptop responds with a recovering BIOS message onscreen.

Be patient as it may take up to @45 seconds to respond.

That should resolve the issue.

[15-BS115DX]

Erico, thank you very much for answering, I already tried all the methods, I am a PC technician from Circuit City so I have a good idea of what to do, I already tried Windows key + the B key at the same time and power button, also power button first and Windows key + the B key at the same time also different USB (Fat 32) and nothing, I am going to try to reprogram the bios by removing it from the main board, could you help me by sending me the bin to use (S/N: it gives me the V. 72 Rev A), since when I opened V.72 Rev A I found a lot of information
Thank you very much for your help

[erico · Accepted solution]

I found a thread from last year where a member updated his laptop with That BIOS version and he or she also ended up with a black screen. https://h30434.www3.hp.com/t5/Notebook-Operating-System-and-Recovery/Bricked-laptop-after-updating-B...

I tried extracting the BIOS and found it is one of those that does not allow it. 

I will have to ask HP which BIOS family it belongs to. 

Armed with that knowledge we should be able to find more options.

What I did discover is that if you extract the  softpaq with WINRAR  and then run the Insydeflash.exe on a different Windows 11 PC, you do get options. 

See the image below. All you should need is to make a recovery USB flash drive and boot the laptop to it.

I went ahead and made a recovery USB drive just to verify it would work. It does!

These .bin and matching .sig files are in the HP-Tools flashdrive's  Hewlett_Packard\BIOS\Current folder on the flash drive.

If I were you, I would err on the side of caution and use one of the older .bin/.sig pairs such as the 08328 version.

The 08445 version is the one that the other member stated black screened his laptop so I don't have much faith in that one.

[15-BS115DX]

Thank you Erico for trying to help me, today I receive my equipment to reprogram the bios, I will let you know the results

[15-BS115DX]

Erico worked perfectly, your advice is very good because bin 08445 is corrupt and does not work but the previous one 08328 is good, we would have to notify HP to remove this bin, I am going to post the photos to help other people