My s6 is dead, is the ic power?

my samsung s6 does not give signs of life, putting it in charge, nor with the forced reboot and hardly the hard reset works.

I like to play with faulty phones, I open the device and do not notice any oxidation or obvious burns of the components. putting it into charge and making a test with the multimeter shows that the current passes but the phone does not turn on. I think it's about ic power, what do you think? is there a way to test the operation of the “ic power” with the tester? I would not want to change the piece unnecessarily even though I'm almost sure it's about that.