How to Clean Corrosion from MacBook Pro Logic Board: Full Guide

Logic board corrosion sometimes causes Apple laptop operation failures. In this article, we will delve into the reasons for such problems and will provide a step-by-step- guide on how to clean corrosion from a MacBook Pro logic board.

The main reasons of clean corrosion from a MacBook Pro logic board are:

• liquid can get under the device case that can cause a short circuit and failure of the board components;
• а MacBook is stored in extremely humid conditions.

How to clean corrosion off MacBook Pro logic board

This guide will be useful for you to clean corrosion from a MacBook Pro logic board. Before you start, prepare the working surface and necessary tools. You can use a table covered with a tablecloth or any soft cloth so that you do not scratch the case.

You will also need:

• a toothbrush;
• lint-free wipes or a towel;
• Ultra Sonic Cleaner;
• Pro Tech toolkit;
• isopropanol.

Dismantle the heatsink and the logic board

To dismantle the motherboard and the heatsink act as described below:

1. Remove the back cover, find the fan, and undo the four screws that fix the bar which secures it on the board
2. Using the spudger disconnect devices from all connectors on the logic board on the upper part of your MacBook.
3. Unscrew the bar clamps which block access for the wires below the heatsink.
4. Disconnect all connectors you can now access and remove all remaining screws that fix the heatsink and the logic board to the case

Cleaning corrosion from logic board of MacBook

Place MacBook logic board with corrosion on a lint-free towel or wipe. Using a toothbrush wiped in isopropanol, clean corrosion. Do it carefully as not to damage any parts or connectors on the board.

Put the logic board into Ultrasonic bath

Follow the ultrasonic bath instruction to make it ready for use. Put the logic board into the ultrasonic bath and start the cleaning process. The recommended time is 15 minutes and the temperature is 40 °C.

Such cleaning will remove the remaining corrosion from the logic board of MacBook which can be hardly seen by an unaided eye. If you do not clean corrosion completely, it will appear again soon and will continue to destroy the board.

Clean the board and let it dry

Put the logic board into a shallow container filled with 99% alcohol for a few minutes to fully displace the water after the ultrasonic bath. Use an air can or a special air gun to completely dry the board.

Check the board for integrity and cleaning results

If a stereo microscope is available it is highly recommended to check the logic board for damaged components or soldered joints. If it is not available, you can only test the board operation under standard conditions.

Assemble your MacBook Pro doing everything in the reverse order and check results of corrosion cleaning. If your MacBook still has operation failures, it is most likely that you will have to seek professional technical service.

Keep in mind that if you clean corrosion off MacBook Pro logic board, it will not always guarantee the proper MacBook operation. Sometimes extra repair is required. It may also be necessary to replace the logic board with a new one.

As a rule, a repair will not help and a new logic board must be installed in the following cases:

• severe physical damage of the board when, for example, shirt circuits burned holes on the board;
• logic board was filled up with lots of liquid long ago and many components and large surface area were damaged;
• many board devices failed during operation.

Also: MacBook Unibody Model A1278 Logic Board Replacement

You can find a genuine logic board for your MacBook Pro for your MacBook Pro model on Apple Parts website. All components and parts presented on the website were tested and have necessary certificates before sale. You will be definitely surprised by favorable prices for parts and components as well as by the cost of repair services

If you are not sure you can clean corrosion from the MacBook Pro logic board yourself, order repair services for your MacBook on AppleParts by e-mail. Our professionals will diagnose your device and send you an invoice. After the repair and invoice payment, you will receive your operating MacBook back the next day.

Genuine Logic Board, 2.6ghz, 32gb, 5300m, 1tb (661-14115) A2141 2019