Before cleaning the charging port, turn off your iPhone every time. This maintains your phone's security and prevents damage. It is advisable that when performing How to clean iPhone charging port, no power should be supplied. After it has been shut down, a fine brush can be used (lightly), a wooden toothpick, or even compressed air. The shutdown also guards the minute components within the port. Now, before you come with how to clean the charging port, you only need to turn off your phone first.