It is a MacBook Pro A1286. Purchased in 2011, I think.
It is running Mountain Lion.
Once that is complete, let the mac start... If it still wont start normally, or if your screen is still tinted..
Please try this next
Wll that allow you to boot and start the mac ?
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I reset the PRAM, or whatever it is before and did it again. The screen boot up with the green tint and after the system started loading (the spinning gear thing), it booted to a gray screen and stayed there.
I restarted the computer and held the shift key as instructed. A progress bar started loading and afterwards the spinning gear popped up it booted to a blue screen with vertical black stripes. It is stuck there.