Power off the iPhone
Inspect the charging port with bright light
If lint is visible, use a non-metal tool (plastic toothpick or wooden/bamboo pick) to gently remove debris
If lint is stubborn, use compressed air in short bursts from a safe distance
Use a soft, dry, anti-static brush to dislodge particles
If needed, lightly dampen a cotton swab with 70% isopropyl alcohol and gently wipe the inside of the port
Allow the port to fully dry before charging (at least 10–30 minutes)
Avoid metal objects (pins, needles, paperclips) and avoid scraping aggressively
Do not use water, household cleaners, or bleach
Do not blow with your mouth into the port
Stop if you feel resistance or see damage
If the port is still dirty or damaged, contact Apple Support or an authorized service provider