CAPS LOCK BLINKING WITH BLACK SCREEN

[TNVSIVA]

My Pavilion Laptop (Pavilion dv6-7138us Entertainment PC) was getting heat and working slow.
So I was decided to clean the fan and processor/heatsink plate by normal air blow.
I followed several YouTube dissections, as well as downloading hp's manual, didn't break anything, cleaned everything with little fanfare, and put it all back together exactly the way it came out.
Flipped it over, pressed that power button and held my breath.... screen did nothing, power light stayed solid, network light was red, and the caps lock light flashed continuously. To describe the flashing pattern, there were no discernable gaps between groups of flashes, just seemed like one ping. On for a second, off for a second, on, off, etc.
As for troubleshooting I've done so far, I've taken apart the entire thing to make sure I didn't leave anything unplugged or misplaced, guided by my prior experience and the manual, I've tried Ram and HDD seating resets, I've tried the tried and true 30 second reset, and I've tried assuming it's a BIOS issue, which involved trying to hold down the windows button plus V or B or just pressing down all arrow buttons. Finally in relation to BIOS, I tried installing BIOS on a flash drive as suggested by HP, and was met with the same flashing caps lock.

[Nirvana_95]

Hi @TNVSIVA 

Welcome to the HP Support Community. Thanks for bringing this to our notice.

I see that you are facing booting-related issues on your system. Do not worry, we are here to fix it.

May I know from when are you facing this issue?

Did you make any hardware or software-related changes to it apart from what you have already mentioned?

Do you see anything on the screen?

I would suggest you please follow the steps shared in the link below and let me know the outcome of it: https://support.hp.com/id-en/document/ish_3974055-3873564-16 

Hope this helps! Keep me posted. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. 

Click the “Yes" on the bottom right to say “Thanks” for helping. 

[ub6424]

Hello @TNVSIVA 

Follow these guides:

(1) https://www.youtube.com/watch?v=sj6kYmT7GLs

(2) https://www.youtube.com/watch?v=qpiGUojtr3E

best regards

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