Chosen Solution
I have a MacBook Pro 11,3. The external display works with no problems. The internal screen doesn’t. I’ve already replaced it but still no luck. Am I missing something important. It should also be noted that it is using a pretty old efi firmware version. Would that make a difference?
So you did the test and don’t seen anything is that correct? Then you’ll need to look at the display connector area is the connector or the solder joints damaged?
