USB port on the MacBook is broken - what to do?
If the USB port doesn't seem to work, it must be directly to a Hardware Defect.
- First you should check all USB ports with different USB devices. The only way you can exclude that the USB device is broken.
- If only one USB port is not working, is this dirty may. You see if in the slot the Dirt has accumulated. This can block the contacts cover or the shaft. If so, clean the USB port gently with a handkerchief.
- If you can rule out the USB device, and all USB ports don't work, there may be a fault in the PRAM. This "locks" all of the USB ports and so can detect your MacBook, no USB-device. In this case, you should use the PRAM reset.
- Make sure, however, that various other settings such as screen resolution or the stored volume will be lost. This you need to restore after the Reset.
- In most cases, you can fix it in the PRAM-Reset the Problem. If not, it is most likely a Hardware Defect. Please contact to the Apple Support.
Tip: read how to make your complete MacBook best clean.
