My laptop not booting.

[mdishahed]

I have issues with my laptop and don't know what to do though I've been using this one for three years. When I press the power button (ac power on) my laptop does not boot and power button, wifi button, sound button and caps lock button of the keyboard is blinking. And that's it.

I tried already these:

1. I took off the ac power line and battery off. press and hold the power button for 30 secs to drain the battery.

2. then I put back the battery and the ac adapter line. And even without pressing the power button, these buttons (power button, wifi button, sound button, and caps lock button) started blinking again. 

In this stage, I don't know which way should I proceeds. Help would be appreciated. 

Thank you in advance.

[Lil_Boy_Blue]

Hi

https://support.hp.com/us-en/document/bph07107

The Blinking Lights usually indicate the area of concern...

EG:

BIOS flashing light error codes for computers released between 2011 and January 2015

On some computers, the motherboard can flash or change the color of lights on the outside of the case, such as the power button LED and the hard drive activity LED. For computers that support this technology, lights blink and provide a beep to indicate a failure condition.

LED and beep condition	Description	Corrective action
Power button LED blinks 5 times with 5 beeps	Memory	Reseat memory DIMM modules. If the problem is not resolved, contact support to resolve a possible RAM or Main-Board failure.
Power button LED blinks 6 times with 6 beeps	Video Card or Graphics	Reset the graphics card (if applicable). If the problem is not resolved, remove other accessory cards, and replace the graphics card or Main-Board.
Power button LED blinks 7 times with 7 beeps	Motherboard or Main-Board failure	Contact support for possible Main-Board replacement.
Power button LED blinks 8 times with 8 beeps	BIOS or CMOS problem (ROM)	Perform BIOS recovery with external media (USB/CD-ROM).