Power off the iPhone
Remove the charging cable and any accessories
Inspect the charging port with a flashlight
Use a dry, soft, anti-static brush to gently loosen debris
Use a clean, dry, wooden or plastic toothpick to carefully remove lint
Hold the phone with the port facing downward while cleaning
Tap the phone lightly to dislodge loose debris
Blow short bursts of air from a can of compressed air if needed
Avoid using metal objects
Avoid using liquids, sprays, or cleaning solutions
Avoid inserting anything too deep into the port
Recheck the port for remaining debris
Test charging with a cable after cleaning
Seek professional repair if the port is damaged or still not charging