black screen after bios ubdate

[TKalaji]

Hp notebook 15 bs150sa

I updated the BIOS using F2 - system diagnostics - update firmware. After updating, the laptop no longer boots and displays a black screen. I can hear the sound of the hard drive working. I flashed a bootable BIOS from the HP website and booted up while holding down the (Windows + B)  keys after releasing the power button, but the screen remains black. Please, any solution would be highly appreciated.

[Max3Aj]

@TKalaji, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 
Since your HP Notebook 15-bs150sa now has a black screen after a BIOS update and the standard Win + B recovery method hasn't worked, this points to a deeper issue like BIOS corruption or a failed flash.

Here’s a structured approach to try and recover your notebook:

Perform a Hard Reset

This ensures all power is drained and forces the system to reinitialize.

• Disconnect power adapter and remove the battery (if removable).
• Press and hold the power button for 30 seconds.
• Reconnect only the power adapter (leave the battery out if removable).
• Try turning on the laptop again.

Retry BIOS Recovery 

Sometimes, different HP models use different key combinations:

• Insert the USB stick with the correct BIOS recovery .bin file (downloaded from HP support site).
• Plug in the power adapter.
• Press and hold:

1. Win + B,
2. While holding, press and release the power button once.
3. Continue holding the keys for 10–15 seconds, then release.

Watch and listen:

• If you hear beeping or see flashing lights, it means recovery is starting.
• If not, try the other key combo (Win+V if you tried Win+B, or vice versa).

External Monitor Check

Connect an external monitor or TV via HDMI to see if the internal display is dead but the system is still booting.

• If you see output externally, the internal screen might have failed during the update.
• Press Win + P multiple times and then Enter to switch display modes blindly.

CMOS Reset / BIOS Battery (Advanced)

If you're comfortable opening the laptop:

• Remove the bottom panel.
• Look for the CMOS battery (coin cell) on the motherboard.
• Disconnect it for 5–10 minutes to reset BIOS settings.
• Reconnect and reassemble.
• Power on again.

Recreate BIOS USB (Correctly)

Make sure you:

• Go to: support.hp.com 
• Enter your serial or model number.
• Download the BIOS recovery tool for USB (usually ends in .exe).
• Run the .exe on a working Windows PC—it will extract and copy BIOS files to a USB drive.

Use a FAT32 formatted USB and try to use a USB 2.0 stick if possible.

If nothing works, We suggest you please visit the nearest HP authorized service center, the service team will check and assist you. 
Kindly follow this link to locate the nearest HP service center: HP® Service Center Locator - United Kingdom | HP® Support
(Select the country from the dropdown menu and enter the city name or pincode) 
 

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Select "Yes" on the bottom left to say “Thanks” for helping! 

Max3Aj

HP Support 

[TKalaji]

Hi, I tried all the methods mentioned, one by one. Unfortunately, the issue remains (black screen). Please solve the issue..

[Max3Aj]

@TKalaji, Thank you for your response,  

I'm sending a private message to assist you with the next action. 

  

Please check your Private message icon on the upper right corner of your HP Community profile Next, to your profile Name, you should see a little blue envelope, please click on it or simply click on this link. 

  

I hope this helps! Keep me posted. 

  

Max3Aj

HP Support