In particular, the authors told what not to do when cleaning iPhone speakers. Do not use sharp objects to try to remove debris from the holes. Tips for using toothpicks, tweezers or even paper clips should be avoided. Also, do not use medical alcohol or any other liquid.
It’s also a bad idea to use compressed air tanks. For example, while they are useful for cleaning laptop keyboards, they create too much pressure for more sensitive electronics. In the end, you can just drive the dirt even deeper.
Apple recommends cleaning the iPhone speakers with a small brush with soft bristles. Make sure the brush is clean and dry. It should be held at an angle.
Source: Ferra
