Screen blank, CAPS light blinking continuously

[Karabo_01]

Please help, My HP model : 15-r001si

The CAPS button is blinking continuously and the screen is just blank. 

[Echo_Lake]

@Karabo_01
Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help, however, to provide an accurate resolution, I need a few more details:

• When was the last time it worked fine?
• Did this happen after a recent window or software update?
• Have you made any hardware/software changes?

While you respond to that, let's try these steps: 

Hard Reset:

1) Shutdown the computer.  

2) Unplug all the Adapter and peripherals connected.  

3) Remove the Battery. ( not for Built-in Battery computer ) 

4) Press and hold down the power button for 15 to 20 seconds.  

5) Plug-in the Adapter and put the Battery back into the computer if it's a (removable battery)

6) Try to turn on the computer and check, If the computer boots up normally continue next step:

Set BIOS default and restart:

1. Restart your notebook.
2. During startup, press F10 repeatedly until the BIOS menu is displayed.
3. Once the BIOS menu is displayed, press F9 to restore factory defaults.
4. Select Yes to confirm.
5. Press F10 to save changes and exit.
6. Select Yes to confirm.
7. The computer restarts using the default settings.

Hope this helps! Keep me posted for further assistance.
If I have helped you resolve the issue, feel free to give me a virtual high-five by clicking the 'Thumbs Up' icon below, Followed by clicking on "Accept as solution" from the drop-down menu on the upper right corner,Thank you for posting in the HP Support Community.  Have a great day!