PLEASE HELP!!! Black screen caps lock 5.3 blinking code pattern and flashing battery power indicator

[J6-_9]

After installing recommended 2020-02 Cumulative Update for Windows 10 V 1909 for x64-based Systems ( KB4532693) and restarting as required... it only finished 2 of the 4 step update process and the screen went black...am only able to power on when ac adapter is plugged in...after doing so the caps lock has 5.3 blink code pattern and red battery/AC power indicator flashes white every 2 seconds...after disconnecting AC adapter from notebook it automatically powers off and battery indicator is no longer red instead it continuously flashes white light but unable to power on

[The_Fossette]

@J6-_9,

Welcome to the HP Support Community!

I reviewed your post and I understand that the computer is not booting to Windows and the caps lock light is blinking.

Don’t worry, I assure you I will try my best to get this sorted.

I recommend you follow the steps in the below article and check if it helps.

https://support.hp.com/us-en/document/c01732674

Let me know how it goes and you have a great day!

If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!

Cheers!