Can someone please help me with newly fitting blank display?
I replaced a display on a customers late 2020 M1 Macbook Air 13" using the iFixit guide. All powered on, display looked fine but it was a bit clicky so I unscrewed the hinges and realigned it (didn't unplug any cables at the time - other than the battery).
Now the display is completely blank, although I can hear the mac noise on startup. I get nothing when I plug in an external display (but I know it doesn't show sometimes unless logged in). I have unplugged the display cable and tried an external display again but still nothing (still makes the startup sound).
Have disconnected and reconnected cables, checked they are not damaged and all look OK.
Can someone please help me work out what the issue is?