My macbook pro model A1226 doesn't boot up and the screen is black, ived try all reset commands with no luck, or try to go in safe mode, and nothing, please help

Help please, my macbook pro model A 1226 doesn't boot up, i hear the optical drive sound starting but no screen light or booting sound, ive'd tried all redet commands, and safe mode but no luck, can anyone give me an solution to my problem. Tnx

It looks as if there's a problem with your GPU. With a Retina machine, that would mean replacement of just about everything, except, perhaps, the flash storage drive.
Print you kernel panic when you go to your Apple Store appointment. I'm betting that it's a faulty GPU but they will be able to diagnose exactly where the problem lies.
Good luck,
Clinton

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