You can also check if your logic board is faulty by using system diagnostics.

The screen and graphics of your Mac are directly connected to the logic board, so a faulty or damaged board reflects on your Mac's display, affecting its brightness, among other things. In the case of a defective logic board, if the backlight eventually comes on, you will experience other hiccups like distorted graphics, gray scales, or colored lines across your screen. Although this can indicate a broken screen or display, it also points to a visual problem on the logic board. This issue may persist even when an external monitor like a projector is connected to your Mac. Although there are several reasons why your Mac won't boot or start, it is an obvious sign of a faulty logic board.įor Macs with fans, you may hear your fan start to spin, but the backlight never comes up or only comes with a dim light. When you have a defective logic board, your MacBook may not boot up when you press the power button.

This will show your MacBook's battery capacity, similar to how you view your iPhone's battery health.

You can click on the Info (i) icon for more information.

You'll see the Battery Health on the right.

Scroll down on the left pane and click on Battery.

To check your battery health, follow these steps: If you are unsure why your Mac is not charging, check that the power source you're connected to is not weak, reduce the tasks running on your Mac, and check your battery health. So, once the logic board gets damaged, it affects the charging ports.

The power input is connected to the logic board, whether your Mac has a dedicated charging port or uses a USB-C port. Your MacBook's Battery Is Not ChargingĪnother sign of a damaged logic board is when your battery doesn't charge even when connected to an electric source.

Macbook pro 13 logic board issue