: Open a pure white image and a pure black image to check for dead pixels or backlight bleeding. Toggle "True Tone" in display settings to verify the original screen is installed.

To buy a used or refurbished 13-inch MacBook Air Go to product viewer dialog for this item.

: Go to System Settings > Battery > Battery Health . Look at the maximum capacity percentage. If it is below 80%, the battery will likely need replacing soon. Check the cycle count under System Information > Power (ideally, it should be under 500-1000 cycles).