MacBook Pro A1286 Late 2008 not turning on

Hello ive got problem with macbook pro that my mother used to this day. After day like always she turned it off. But today as she tried to turn it on macbook doesnt respond even the fans are not spinning i got schematics and boardview checked everything i possibly could every voltage is right on spot and it is completly dead.

C7771 have above 1.05v

The green light on magsafe is lit up when its fully charged for now it is not so its amber color.

I tried SMC reset that didnt work aswell as command+Option+P+R.

Have anyone got clue what could have failed on it?

Thank you for any help in advance.