iPhone 6 shows charging icon but not charging Recently my iPhone stopped charging at all. I took it to a local mobile shop in Pakistan; they changed my charger and it started charging, then all of a sudden it stopped. It shows the charging icon but the battery percentage was not increasing, rather decreasing.

They told me to change the port, so I did and now it is charging from only one side of the USB cable. I have tried different other cables as well and different other chargers too.
Maybe, the problem is that there is dirt/dust inside the connector (lightning) port.

Try cleaning with a toothpick (plastic is the best) to remove possible dirt from the port.