Laptop not booting but only storage led is active

[Acate]

Hey !

After replacing thermal paste my Asus Zephyrus GA503QS not booting at all, no fan nothing

If I press power button only the storage led is active for few seconds.

Same on AC power 

Exemple video:

https://youtube.com/shorts/dawLxXdy2fw?si=Rv2AEfNe6jKVrjN3

I tried lot of thing like reset CMOS and other, not working..

If you have any suggestions..

Thanks 

[Bogus5]

Static electricity?

A poorly installed connector?

Short circuit with liquid metal?