iATKOS | United Kingdom

Hi guys! Really strange one!

Just downloaded the latest version of opencore, created a sonoma usb installer.

Rebooted imac from the open core menu, it rebooted but to a black screen.

It turns on, that I know, because if i keep pressing the enter key, it will play a sound as if field not accepting text.

If I keep the alt key pressed and turn it on .. still black. No light, no screen. Flashed my flashlight against the screen - nothing.

Option + cmd + P + R does nothing.

Any suggestions! Did I just brick this imac?

Thanks!