Turn off your device and use the can of compressed air or the bulb syringe to clean out the charging port. Blast a few short bursts and see if any dust falls out. If using compressed air, make sure you're holding the can upright to avoid getting water inside the port.
USE COMPRESSED AIR TO CLEAN IPHONE
Using a can of compressed air is the safest way to clean your iPhone's port. Hold the can upright but not too close to the port, and apply a few short blasts of air. You should see small particles falling out of the phone charging port.
And while you may want to start with compressed air, if you're planning to insert anything into the port to pull out wedged-in dirt, there's only one acceptable tool for the job: A toothpick. Important: Never try to clean the charging port with anything harder than wood, like any sort of pin or metal rod.
You can try to dislodge any visible debris using a toothpick, but you must do so very carefully as the charging point is easily susceptible to damage. Some sites recommend wrapping a toothpick in cotton, but this can potentially add to the debris in the port, so we suggest sticking to the toothpick.
Best of all, an Apple Store should clean your port and get your iPhone working again for free. If you don't have a nearby Apple Store, you can take your phone into any similar type of repair shop, jewelry repair shop, or business that specializes in mobile devices or equipment, and they should be able to help you.
What not to use when cleaning your charging port. When cleaning your charging port, using these tools can do more damage than good: Toothbrush. The bristles on the brush can get stuck inside and make things worse.
Hold the iPhone in the light or use a flashlight, so you can see inside the charging port well. Now softly press the skewer or toothpick into the port and scrape all dirt outwards. You can see lint and dust particles appear.
You probably also wipe down or sanitize your phone when it gets dirty. Things like dust and dirt also end up in your phone's charging port. Over time, too much debris in your phone's charging port can cause your device to stop charging properly or stop working correctly altogether.
Apple's technicians will look and clean the port for you if you can visit an Apple Store. Although looking after and maintaining the charging port on your iPhone is quite easy to do and shouldn't cause any issues if you are gentle.
If your iPhone or Lightning accessory is wet
Tap your iPhone gently against your hand with the Lightning connector facing down to remove excess liquid. Leave your iPhone in a dry area with some airflow. After at least 30 minutes, try charging with a Lightning cable or connecting a Lightning accessory.
Remove any debris from the charging port on the bottom of your device. Restart your iPhone or iPod touch. Try a different USB cable or charger. Make sure that you have the latest version of iOS.
One of the most common causes of charging problems is surprising – dust. Lint and other dirt collects in the charging port, obstructing the battery connectors. When you insert your charging cable, the dust prevents a good electrical connection being made, so no power is directed into the battery.
No charge at all.
The use of any liquid to clean electronic devices is ill-advised. Liquids, even thicker liquids such as hand sanitizer, can easily penetrate through small cracks and crevices in the case and enter the interior of the device where they can cause permanent damage and electrical shorts.
The charging port on your phone is probably the problem if the new charger doesn't work either. Try jiggling the charging cable while it's inserted into your phone if your phone isn't charging properly. If the phone begins to charge when you wriggle the wire, the charging port may be loose.
Do NOT insert anything metal into your iPhone charging port. If you are going to try to pick stubborn debris out of your charging port, do not do so with a paperclip or safety pin, or any other metal object. You may be tempted to use compressed air to blast dust and lint out of your iPhone's charging port.