Cleaning the external microphone input is an important task to ensure that the sound captured by the smartphone is of good quality. The external microphone input is responsible for capturing ambient sound and transmitting it to the smartphone, and if it is dirty or obstructed, it can affect the sound quality.
To clean the external microphone input, you need to follow a few simple steps. First, turn off your smartphone and remove the protective cover, if any. Then locate the external microphone input, which is usually on the bottom of the device, next to the charger input.
Carefully use a soft toothbrush or cotton swab to remove dirt and dust from the external microphone jack. It is important not to use sharp or metallic objects, as this could damage the entrance. You can also use an air blower to remove dust from the inlet.
If the external microphone input is very dirty or clogged, you can use some isopropyl alcohol on a cotton swab to clean the input. Make sure the cotton swab is just damp and not soaked in alcohol. Then gently swab the external microphone jack, removing dirt and dust.
After cleaning the external microphone input, it is important to check if the sound is being captured correctly. To do this, make a voice recording or call someone and test the sound quality. If you still experience problems, it is possible that the external microphone input is damaged and needs to be replaced.
