MacBook Neo Troubleshooting Power Adapter Issues

• Identify the ports on your Mac

• Identify your Mac power adapter

• About Power Modes on your Mac

• Using Apple power adapters, cables, and duckheads with Apple products

• If your USB-C power adapter isn’t charging your Mac laptop

• About your Mac laptop’s power adapter

• If your Mac battery runs out of charge quickly

• If your Mac battery status is “Not Charging”

• If your Mac battery won’t charge

1. Inspect the computer for liquid damage. Contact with liquid can short internal circuits and cause the computer to malfunction.

2. Verify that the power adapter and charge cable are the correct types for the computer. Different power adapters and charge cables may appear similar but may not provide sufficient power to turn on or charge the computer. Note that only some power adapters and some charge cables provide fast charging ability. Refer to the support articles above for more information about how to identify Mac power adapters and fast charging.

3. Inspect all USB-C ports and top case openings on the computer for any signs of deformation, damage, or debris that may be blocking the connection. Gently clean each connector using a small, nonmetallic, soft-bristled brush. Ensure that the brush is clean and dry. Use just enough bristles to fit inside the connector. Twist the bristles to loosen and lift out debris. Brush debris away from the connector to avoid brushing debris into the connector.

   • Caution: Before cleaning ports, disconnect all cables and turn off the computer. Don’t use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen peroxide that might damage the finish. Don’t use any metal objects to clear debris or obstructions, as this can short the connector and cause damage. Avoid getting moisture in any openings and don’t spray liquid directly on the computer. Don’t use compressed air in port openings as it may drive debris further inside the port.

4. Power adapter issues can sometimes cause unexpected power states. Verify that the computer is turned off. If you aren’t sure if the computer is on or off, press and hold the power button to turn off the computer. Wait a few seconds. Then press the power button again to turn the computer back on.

5. If the battery is drained on the computer, connect the computer to a compatible Apple USB-C power adapter and charge cable and charge it for at least 10 minutes to verify that the computer’s battery can charge. If the computer doesn’t turn on with a power adapter after charging, continue to the next section. If the computer turns on but doesn’t complete the startup process, refer to Troubleshooting Startup Issues.

If the issue wasn’t resolved by following a support article or trying the quick troubleshooting steps, run these manual and diagnostic tests to help isolate the cause of the issue:

1. Run the Mac Resource Inspector (MRI) diagnostic suite while connected to a compatible Apple USB-C power adapter and charge cable, if possible.

   • Note: This test will gather diagnostic information about the battery and verify that thermal sensor readings are within limits. Check MRI results for any battery, power, fan, or thermal warnings or failures.

If the issue wasn’t resolved or isolated by following support articles or running diagnostics tests, refer to the computer’s repair manual to open and inspect the computer. A damaged or out-of-place part may be causing one of the issues.

1. Follow repair manual procedures to remove the bottom case and disconnect the battery from the logic board.

2. Inspect internal parts and the enclosure for indications of physical or liquid damage, contamination, or burned or darkened areas. Inspect all relevant internal flex cables and connectors for damage or tampering, such as a film or foreign material blocking a connector.

3. Locate the USB-C boards flex cable connector and verify the flex cable is present and connected. If the flex cable is missing, it may be under the logic board. Remove the logic board to locate the flex cable. Disconnect and reseat the USB-C boards flex cable connection to the logic board to verify its connection.

4. If the issue is resolved or inspection reveals no issues, complete the reassembly. If diagnostic results or inspection identified a faulty part, continue to the next section. If the issue persists without identifying a specific part, continue to the next section for logic board replacement.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. You can find other service options at support.apple.com/repair.

If the issue wasn’t resolved or isolated by following the previous steps, replace the following parts for each relevant issue:

• If diagnostic results report any power adapter or charge cable errors or failures, replace the power adapter or charge cable.

• If diagnostic results report any USB-C port failures, or if you find damage in the charging ports, replace the USB-C boards.

• If diagnostic results report any battery errors or failures, replace the battery.

• If no specific faulty part was identified above, replace the logic board.

Repair completion

Depending on the part replaced, Repair Assistant may be available on the device to finish the repair. Learn how to initiate Repair Assistant.

Post-repair verification

Run the following diagnostic suite after the repair:

• Mac Resource Inspector (MRI) (to test overall functionality)

After the repair is completed, turn on the computer and verify that the issue has been resolved.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. You can find other service options at support.apple.com/repair.