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Weird Problem during 10.10 installation (4 split screens)


I used Macpwn to create a bootable Yosemite USB. Everything went perfect. I also used the 10.10 mbr patch.

The problem is, when i boot up the usb it starts good as shown below


but after 50% of loading, the screen starts to flickr and then one big screen splits into 4 small screens as shown below


Then the icon is loading but nothing happens.

Please advice me.


Thank you guys.


CPU : i3 2310M

GPU : HD3000


Current OS : 10.9.4

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