MacBook doesn't power on

Hello people.

My MB doesn't boot anymore. Whether on battery or on MagSafe, it doesn't power on.

I managed to change the DC-In board, but still doesn't power on. MagSafe is working OK because it's from an other MB.

What's the next step I should take? Is the MoBo TFU?

Thanks and kind regards,

Flavio.

Hello Rick, and thanks for replying.

MagSafe lights up green, but it's not a "calm and fixed" green. It is a flickering green light.

About the battery: should I watch under the MacBook if the battery LEDs light up when I press the power-on button on the MacBook itself?

I'll eventually be trying to reset the PRAM, as a next step.

Thanks so far.

F.