A logic board failure (computer doesn’t start, black screen) is common in older MacBook Pros. Fortunately, you do not have to rush to a MacBook repair store to get it fixed. You can try fixing it at home.
First, find the problem and take apart the MacBook using the right tools. Inspect the logic board carefully. Test parts using a multimeter to find what’s broken and replace them using a soldering iron. Put the MacBook back together, add thermal paste, and ensure everything works.
Tips to Repair MacBook Pro Bad Logic Board
Here is how to repair the bad logic board of your MacBook Pro.
Step 1: Open the Top Case
- Use a Torx T6 screwdriver and a small Phillips screwdriver.
- Remove the top case.
Step 2: Remove the Logic Board
- Use the same screwdrivers to take out the logic board.
- Clean the logic board and remove the old thermal compound.
Step 3: Inspect the Logic Board
- To properly repair the MacBook, look for obvious signs of damage, such as burnt components, corrosion, or loose connections.
- Use isopropyl alcohol and a brush to clean any areas with liquid damage.
Step 4: Test Components
- Test components like capacitors, resistors, and transistors for continuity and proper values using a Multimeter.
- Ensure that power is reaching various parts of the logic board. Lack of power can indicate faulty components or traces.
Step 5: Replace Faulty Components
- Use a soldering iron carefully to remove faulty components identified during testing.
- Solder new components in place, ensuring good connections and avoiding bridges between solder joints.
Step 6: Reassemble
- After repairing the MacBook’s logic board, carefully reinstall it.
- Put the top case back on.
Step 7: Test the MacBook
- Turn on the MacBook and check if it boots up properly.
- Use Apple’s diagnostic tools again to ensure the repair was successful and no new issues have arisen.
Step 9: Apply Thermal Paste
- If you removed the heat sink during disassembly, clean off the old thermal paste from the CPU and heat sink.
- Apply a small amount of new thermal paste to the CPU before reattaching the heat sink.
Step 10: Final Checks
Test all functions of the MacBook, including keyboard, trackpad, display, and ports.
If you find the process to be overwhelming or are not confident enough to do it yourself, you must seek professional help to ensure safety.
What Causes a Bad Logic Board?
Here’s everything you need to know.
Liquid Spill
Spilling a drink or any liquid on a MacBook can be very scary. When the liquid gets inside, it can ruin the delicate hardware. The logic board is usually the first thing to get damaged, and sometimes the keyboard. Liquid on the logic board’s connecting points can stop it from working and cause the entire board to fail. If you spill something, don’t panic. Remove the MacBook from its power source right away and seek professional MacBook repair services.
Overheating
Overheating is harmful to the whole MacBook, especially the logic board. All parts of the MacBook need efficient cooling to work smoothly. Overheating can be caused by large dust buildup or a faulty cooling fan.
Natural Wear and Tear
Many hardware components don’t last very long. Logic board failure due to natural wear and tear is common, though it is very unpredictable.
To Sum Up
If your older MacBook Pro has a logic board failure, don’t worry! You might be able to fix it yourself. First, diagnose the problem and gather tools. Then, the MacBook will be disassembled, the logic board and test components will be inspected, and any faulty ones will be replaced.
Consider professional MacBook repair services if you’re unsure or it doesn’t work. Logic board failures can happen due to liquid spills, overheating, or natural wear and tear.
Frequently Asked Questions
1.How to tell if a MacBook logic board is damaged?
If your MacBook won’t turn on, has random shutdowns, or shows strange graphics, the logic board might be damaged. Other signs include issues with charging and unresponsive keyboard or trackpad.
2.How much does it cost to repair a logic board on a MacBook?
The cost of repairing a logic board on a MacBook can vary based on the model and the extent of the damage.
3.How much does it cost to replace the logic board on a MacBook Pro?
The cost of replacing the logic board on a MacBook Pro depends on the specific model and where you get the repair done.