My IMac 27" shows five vertical stripes on a white background when I turn it on, while also showing the progress bar for starting up.
After that the screen turns completely white and only shows the mouse arrow with thin horisontal lines around it. It stays that way.
Tried command-R and get to the recovery-screen. But it doesnt help and the five vertical stripes remain. When I restart it is the same situation Again with vertical stripes and then white screen.
The IMac uses the latest IOS.
Any good ideas? Thanks a lot, Jacob
After that the screen turns completely white and only shows the mouse arrow with thin horisontal lines around it. It stays that way.
Tried command-R and get to the recovery-screen. But it doesnt help and the five vertical stripes remain. When I restart it is the same situation Again with vertical stripes and then white screen.
The IMac uses the latest IOS.
Any good ideas? Thanks a lot, Jacob