Macbook pro won't boot?

Question

macOS

MacBook Pro (Early 2011) MC721LL.
During operation, a blue screen appeared in a strip. Turned off the laptop, now it does not boot, symptoms:
White screen with an apple in some unnatural colors, as if in 256 colors, then a gray screen appears, after a while it darkens and that's it. It loaded a couple of times, but after 2 minutes of work it hung.
When you start in safe mode (Shift), everything is the same. Doesn't boot from disk. Cmd-R does not respond.
A year ago, I changed the screw to ssd and RAM up to 8GB, inserted the old screw and the old RAM, nothing has changed.
Loading video:
www.youtube.com/watch?v=eIf7ZR7h2qo
Loading in verbose mode:


Can anyone come across a similar problem, please tell me.
Another question arises with the service center, where to carry? bought almost 2 years ago, grey.

Answer 1

It looks like a video chip.
Apple computers have a one year worldwide warranty.
To clear my conscience, I would try to remove the drive and replace the RAM. If everything is the same, then look for a good service center or order a motherboard on the Internet. Good luck.

Answer 2

The symptoms are similar to the failure of the video card.

Answer 3

Try it once: support.apple.com/kb/HT3964
Is it getting hot?
is it possible to boot from the original DVD and run a hardware test?

Answer 4

Try it once: support.apple.com/kb/HT3964

unplug the battery for 10 minutes

Did not help.

Answer 5

I would run memtest just in case, but it's more like video.
The beech does not always squeak for a bad memory, so you need to check it anyway.