Long Drive Self-Test progress stuck at 10%

[aman_svt]

It's been 4 days since I changed my inbuild battery and some odd things started happening on my screen like flickering and yesterday when I started my laptop, the screen remains black and the capslock key was blinking 3 times long and 2 times short. I tried to open my laptop to see if something is wrong with my memory and I saw my hard drive wasn't connected properly, I did fixed it. 

After reassembling my laptop I opened it and suddenly BIOS recovery started going on and It took to me the home screen. I updated my BiOS after it and thought everything is fine now.

But still when I was doing the system tests for confirmation , Long Drive Self-Test isn't progressing more than 10%.

What should I do now?

I need help please.

[Lil_Boy_Blue]

Hi
First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.
Rinse and Repeat

Power on your PC, press Esc (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).

Hardware

3.2

The embedded controller has timed out waiting for BIOS to return from memory initialization. Indicates potential memory failure.

1 Reseat memory. 2 Correct memory configuration. 3 Test with known good memory. 4 Replace affected component.

Hopefully one of these documents will cover (and solve) your problem...

https://support.hp.com/ca-en/document/c00042629
https://support.hp.com/us-en/document/c02693833