Black screen, blinking caps lock

[Baleasun]

My laptop turned black in the middle of using it. It started making very strange beeping sounds and just turned off. Then, when pressing the power button, the only thing that happens is the caps lock key keeps flashing, 5 long flashes followed by 3 short ones. Sometimes it switches to two long and two short flashes. I'm not sure what to do, every suggestion I found on the Internet so far hasn't worked. Please help! 

[Dragon-Fur · Accepted solution]

@Baleasun 

Not sure what you found on the 'net, though I would guess the answers are about the same everywhere.

Found the specific document you need for this in

Category  Troubleshooting 

Select Topic Startup or Shutdown

Select Subtopic:  Startup

Open Document

Computer Does Not Start and Emits an LED or Beep Code

The 5.x blinks are all "system board" related

5.2 (blink)	System board	The embedded controller cannot find valid firmware.	Disconnect the power supply and power the computer with battery power. This resets the Embedded Controller/Keyboard Controller. Unplug the AC power from the computer. Press and hold the power button for more than 12 seconds. Release the power button (after at least 12 seconds). The computer powers on and should boot normally. Re-connect the AC power to the computer.
5.3 (blink)	System board	The embedded controller times out waiting for the BIOS.	Remove all accessory devices from the notebook. If the error code persists, contact support for possible repair.
5.4 (blink/beep)	System board	The embedded controller times out waiting for the BIOS to return from system board initialization (end of POST).

There is, of course, only one solution for failed hardware.

If the error will not clear, contact HP Support or your local repair house.

References

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HP Technical Support – Contact Information

Submit information / case online

Sign in or continue as a guest

Reminder: 

HP Phone numbers you find on the Internet have likely been hijacked.

HP Support USA does not post public phone numbers.

Many roads lead to HP Support.

Settings > System > About > (Support) Online support > Contact an HP Agent

OR

Open website  HP World-Wide Support

 Select your region and follow the prompts

OR

>>> Option - HP Support is on Facebook <<<

HP on Facebook

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Warranty Check / Product Registration

• Register your product during first setup or soon afterwards

            Register HP Product and Registration FAQ

• Check the Warranty on your product

           Warranty Check – Single or Multiple Devices

       NOTE:  If the single-system-check fails to find your device, use the "multiple devices" method to

check single or multiple devices.

• If necessary, Select your Country on the main website page or at the bottom (click Flag)
• Scroll down > To the right of Check multiple warranties, Click Continue
• Enter the Serial Number and Country for one or more devices / systems to be checked
• Check the box to verify you are "Not a robot"
• Click Submit (at bottom of list entries)
• When the page opens, Click View Details

NOTE: The online database results do not impact the actual contract.

Warranty Dispute

Excerpted: If you think the warranty details of your product are incorrect, submit a dispute through the HP warranty validation website.

• If necessary, select your Region / Country:  Scroll to bottom of page and click the Flag
• HP Computers and Printers - How to Submit a Dispute to Validate Your Warranty

HP Limited Warranty Statements (General Information)

Standard Warranty, that is, the warranty included with the device, typically covers hardware as explained in the Warranty document.  Optional Care Pack warranties differ by contract.

• HP Limited Warranty Statements | HP® Official Site

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Device Home Page - References and Resources – Learn about your Device - Solve Problems

NOTE:  Content depends on device type and Operating System

Categories:  Alerts, Warranty Check, HP Drivers / Software and BIOS, How-to Videos, Bulletins/Notices, How-to Documents, Troubleshooting, User Guides / Manuals, Service and Maintenance Guide (Replacement Parts and Procedures), Product Information (Specifications), more

When the website support page opens, Select (as available) a Category > Topic > Subtopic

HP Spectre x360 - 13-ac052na 

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Click Thumbs Up to say Thank You for the help.

If the answer helped resolve your issue, Click "Accept as Solution" .

[Baleasun]

@dragon-fur

Thanks for the help! Sadly I already tried the things you suggested and nothing changed 😕 will probably have to bring it to a repair shop...

Thanks anyways! 

[Dragon-Fur]

@Baleasun 

You are welcome.

Yes, sometimes the solution is to have the hardware repaired.

Rats.

Stay Safe.

Thank you for participating in our HP Community.

We are a volunteer community workforce dedicated to supporting HP technology

Click Thumbs Up to say Thank You for the help.

If the answer helped resolve your issue, Click "Accept as Solution" .

[1Truth]

Hey peeps so I've had the blinking caps lock recurring now for the last week, I'd fixed it before doing hard reset but now that's not even working.  The unique solution i have at present is to do the hard reset and holding down power button without battery inserted to completely discharge the computer then upon reconnecting AC hold down the power button and the windows key and B for 1 second and it should reboot the BIOS and then restart the com automatically after a prompt.  You will need to be connected to the internet to sign-in and access your desktop and maybe asked to provide further security checks as the securities are also deleted from the procedure.  Hope this helps albeit temporarily.  Good luck