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Let it recycle for until get to start up screen.

I went thru another boot up but this time all the way to where I got frozen and kicked off. This time it went passed to my start up screen. It went thru the same login and everything, then went to blue vertical lines screen this time. connected to my WiFi for internet w password. I saw this YouTube video, pressed alt after restarting to get to hard disk not recovery disk. I couldn't even get to the disk utility screen. I tried RAM/PRAM reset, safe mode, recovery mode but nothing changes. After restarting i see gray horizontal lines w Apple logo, logined w password and went thru process bar then white blank screen, then after a bit shuts off itself. My mc pro late 2011 got sudden freeze with vertical lines then shut off by itself.