MacBook Repair

How these faults present

• Screen dark, machine running: A failed panel, backlight circuit or lid flex Test on an external display.
• Touch Bar or top row key dead: A failed flex or separated board connector Reseat or replace the flex.
• Battery will not hold charge: Cells at the end of their design life Read the cycle count from the battery.
• Trackpad lifted, case bulging: A swollen battery pressing from inside Stop using it until replaced.

Where this differs by device

• The display, battery, keyboard and trackpad are separate parts, so one failure does not mean a new machine.
• Battery packs carry specific cell configurations and a connector, and the wrong pack will not seat.

Where engagements like this go wrong

• Fitting a part from the model name without checking the board revision.
• Leaving a swollen battery in place, which damages the trackpad.
• Replacing a screen when a backlight fault or flex is the cause.

What changes the cost

• The part, and whether it is genuine, bonded or assembled.
• Model and year, since older parts take longer to source.
• Whether calibration and data transfer are needed.