Issue Description
Mac powers on but shows a black or blank screen.
Common Causes
- Display settings corruption
- External display conflicts
- Firmware glitches
Step-by-Step Solution
Step 1: Check Brightness and External Displays
- Increase brightness
- Disconnect all external monitors
Step 2: Reset NVRAM (Intel Macs)
- Shut down
- Power on → hold Option + Command + P + R for 20 seconds
Step 3: Boot into Safe Mode
- Test if display loads correctly
Step 4: Reinstall macOS (If Needed)
- Use Recovery → Reinstall macOS
Explore Further
- Run Apple Diagnostics
Prevention & Best Practices
Update graphics drivers via macOS updates.