Hp Notebook Power Led Blinking and do not boot

[Utentehp]

Hello all

I'm trying to fix my laptop which mainboard (i think) has decided to not work anymore. The laptop is a hp 14s-FQ series

I have tried:

• to change the power adapter
• to change the power cord to the mainboard
• an other RAM
• to press power button for one minute without battery
• to press power button for one minute with battery
• to unplug the battery

I attach the image of the blinking LED

Can you help me about this from the desperate sick wards???😭😭

[Utentehp]

Up!!

[Utentehp]

No one? 😭

I believe there is a short in some part due to some faulty components as a resistor or something else.

Not having an electric scheme of the mainboard i was hoping that the blinking would have given me some infos

I will try in other electrical forums and if i will find some solution i will post also here