Blue screen, vertical lines and reboot
Hello everyone, suddenly yesterday morning while I was using Photoshop, the display of my iMac became all blue. Then it automatically restarted and after this, during start up, the background was always blue and the Apple logo was on a square splitted into two parts: the left one was ok but the right part was grey with horizontal lines. It constantly restarted without my commands.
I also tried to:
- run hardware test --> No problem found after the analysis
- boot from usb (Ubuntu, just to recover) --> central black and blue striped square for few seconds then restart
- boom from Recovery partition (pushed Alt button on startup) --> automatic restart
Is there a way to fix this problem? I would like to know if I can recover at least my important files.
Thank you in advance, I am desperate.
