Blotched SSD upgrade: Why is my display black?
Following an SSD upgrade using an OWC upgrade kit and thermal cable my iMac's display no longer powers on.
On power up I get a happy start up chime followed by a steady increase in fan volume with only my external monitor turning on. When I run the apple hardware test I get error/fault 4sn/1/c0000008:TL0p--124.
Any ideas what I may have inadvertently broken or misconnected? Is whatever I most likely did easy to repair/replace?
Is this a good question?