2025 09 06

Backlight Fix


Model A1466 MacBook Air A1466

Issue
Costumer had a MacBook with a very low screen brightness and would only work at a specific angle .External monitor Worked good as new ,Verifying it was display related problem.

What we found out
Backlight circuit failed because flex cable got damaged and old age degradation. Most repair centers would replace the entire screen — we repaired the backlight circuit itself.
At Mac Tech Service, we offer board-level screen repair service for older MacBook Air models. We fix what others would replace.

Our Services
-Diagnosed backlight using voltage trace and schematic analysis
-Repaired cracked flex cable and replaced backlight fuse.
-Reflowed the solder joints Cleaned internal display connector

  • Tested brightness levels in all settings
  • Performed thermal and battery tests to ensure stability over time

Customer left with a bright, fully functional screen — no replacement necessary.

MacBook Air A1466, low cost screen repair, backlight circuit repair, Dallas Mac repair, Apple screen diagnostic, Mac display bright spot issue