Only chime, no graphics
Hi guys, I've got a MacBook Pro Retina late-2013 with the exact same issue. Only chime, no graphics. It doesn't respond to any commands (except for Reset SMC...that, according to the light on the charger, it did work). But other than that, I think I tried everything.
It loops on that chime even without the SSD inserted. The cause of this was actually software (bad OS installation, don't ask, it was a stupid mistake) and when I realized it I force shut down the machine. Ever since I did that, all the other reboots are going into boot loop like this. No graphics on the screen (the screen does light up normally though). Only startup sound.
Is this a good question?