To fix a damaged charging port, follow these steps:

1. Check the port for debris and foreign objects.
   Use a flashlight to inspect the port and determine if there are any blockages or any damage to the metal pins.
2. Carefully remove any visible debris with tweezers.
   If needed, use a vacuum cleaner to remove any dust or debris from the charging port.
3. Carefully examine the charging port for physical damage.
   If the metal pins are bent or damaged, you may need to use a thin tool (e.g. toothpick) to carefully straighten them.
4. If your device does not charge even after the above steps, use a multimeter to test the voltage of the port.
   It should read 5V when the charger is connected to it.