Black Screen, no startup sound
I installed a new screen, everything went smoothly. Boots up with no startup sound and it’s just a black screen. It’s a known good screen.
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Aha! I had this problem the other day. Here’s how I got my screen to work again.
- With the MagSafe and the battery in, home the power button down for 10 seconds.
- Remove the battery and MagSafe charger and wait 2 seconds
- After 2 seconds is up, put the MagSafe charger in, you should get a spontaneous reboot.
That somehow solved my issue with my MBP's screen not working after replacement , hopefully it solves your issue.
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No luck on that solution. I also tried swapping memory.
Let’s be sure it is 100% an issue with the screen. Connect your MBP to an external monitor and tell us if you see anything.
