How to clean the Lightning port on your iPhone
Puede que este sea el conector Lightning del futuro, y el nombre le viene que ni pintado
En las tiendas de Apple cuentan con herramientas profesionales que realizan el vacío, por lo que tu puerto quedará como nuevo. Normalmente en las tiendas de Apple esto suelen hacerlo de forma gratuita si les dices que el puerto funciona mal.

Vía
Our iPhone’s charging port is one of the most reliable in existence, perhaps that’s why it’s been with us so long, although we don’t know how long it will last. But, like everything in this life, it is not infallible and dirt is one of its main enemies .
A lot of dirt can accumulate in the pockets and enter the charging port of our iPhone. If you have noticed that the iPhone has problems charging or the cable does not fit well enough into the Lightning port, a cleaning is the best way to go.
This is a small and delicate port, inside we have several metal connectors that should not be damaged, so these solutions are the most suitable for cleaning.
Chopstick
This is a very simple solution, but may be a bit dangerous for the Lightning port if we are not careful , so we should be careful. A normal toothpick may work, but perhaps with interdental brushes we will get a better result.
With take care to insert the stick into the port , note that the metal connectors are at the bottom, so try not to apply too much force at that point and drag the dirt out.
Compressed air
Compressed air is a less dangerous option as we will not touch the Lightning port . Normally nobody has a compressed air gun at home, so compressed air sprays like this can be a good solution.
Ideally, it should be used fairly close to the port, but not too close together. Then spray the air in short bursts . After these bursts of air we check if the port works properly again, if not we repeat the process.
Apple Store
We left the best solution of all for last, though perhaps not within everyone’s reach. If you have an Apple Store nearby, they will clean the Lightning port for you without any problems .
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