BIOS does not start and does not allow access black screen

[Lalo_2024]

Hello everyone, I have read several articles in the forum and I cannot find an answer that solves the problem that I am facing and that I understand happens to other users...

I have an HP 17-cp0035cl (50U26UA) in an automatic Windows update the PC did not turn on again and the screen went black, I tried the proposed solution of window + B and updated with flash boot from a pendrive... the problem continues, it tells me that there is an error in the BIOS and I cannot access with Esc, F10, etc... The screen continues to be white, black, no image, no access to the BIOS...

Does anyone know a solution to the issue? I have already removed the battery, removed the memory, the disk, etc. I am still at the same point, I updated the BIOS and I am still the same!!!

[Sneha_01]

Hi @Lalo_2024,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

When dealing with a black screen and inability to access BIOS on an HP 17-cp0035cl laptop, especially after a failed Windows update, it suggests a serious issue that might involve hardware or firmware corruption. Here are steps you can take to try and resolve the issue:

1. Perform a Hard Reset

1. Turn Off the Laptop: Make sure the laptop is powered off.
2. Disconnect All Peripherals: Remove all external devices (USB drives, external monitors, etc.).
3. Remove the Battery: If the battery is removable, take it out. If not, skip this step.
4. Press and Hold Power Button: Press and hold the power button for 15-20 seconds to discharge any remaining electrical charge.
5. Reconnect Power and Battery: Reconnect the power adapter and reinsert the battery if you removed it.
6. Power On: Try turning the laptop on and see if it resolves the issue.

2. Reset BIOS/UEFI

If you can’t access the BIOS normally, try these methods:

BIOS Recovery Using a USB Drive:

• Prepare a USB Drive: Download the latest BIOS update for your model from the HP support website using another computer. Make sure the BIOS update is for your exact model.
• Create a Bootable USB: Use the HP BIOS Update tool or other utility to create a bootable USB drive with the BIOS update.
• Attempt Recovery: Insert the USB drive into your laptop, then try to initiate BIOS recovery by pressing Win + B or Win + V during power-up. You may need to hold these keys while pressing the power button.

Clear CMOS:

• Access the CMOS Battery: If you’re comfortable with opening the laptop, locate the CMOS battery on the motherboard.
• Remove CMOS Battery: Remove the CMOS battery for a few minutes to clear the BIOS settings. This might reset the BIOS to default.
• Reinstall the Battery: After waiting, put the CMOS battery back in and attempt to power on the laptop.

3. Check Hardware Connections

Reseat Components:

• Memory Modules: Remove and reseat the RAM sticks.
• Storage Drive: Ensure the hard drive or SSD is properly connected.

Inspect for Visible Damage: Look for any visible damage on the motherboard or components. If there’s visible damage, you might need to consult a professional for repair.

4. External Monitor Test

1. Connect to an External Monitor: If you have a spare monitor, connect it to your laptop to check if there’s any display.

I hope this helps.

Take care and have a good day.

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

Rachel571

HP Support

[Lalo_2024]

hi Rachel

Thanks for your reply and for your guide, I have already done all the known and published procedures and I was not able to solve it, so I decided to investigate other means and resorted to buying a new pre-recorded BIOS and installing it... I will receive it in a few days and see if I can solve the problem...
Unfortunately, the software tools do not solve the problem, perhaps in the future the correction will be found that way, but I need something fast, since it is my work tool...

I bought it in a remanufactured eBay sale, it only lasted 2 months and is not guaranteed by HP

Thank you very much for your time...
LALO

[Sneha_01]

Hi @Lalo_2024 

I'm sending out a private message to assist you with the next course of action. In order to access your private messages, click the private message icon on the upper right corner of your HP Support Community profile, next to your profile Name.

Hope this helps! Keep me posted for further assistance.

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

Rachel571 

HP Support