Replaced logic board and now mac boots to black screen
crwdns2934249:0crwdne2934249:0:
I replaced my late 2013 macbook pro’s logic board with an used one with higher specs. After replacement, I get the boot sound and keyboard and screen backlights turn on but I only get a black screen, no apple logo nothing. I plugged in an external, monitor through hdmi but the monitor got no signal. I changed back to my old logic board and everything went fine.
I swapped my ssd from my old logic board onto the new one. Is there anything I have to do to the SSD or something that I am missing? The logic board was taken from a working computer but could there be something wrong with it?