IF having problem on USB charging on Nokia 6720c, refer to the solution below and check those certain components that holds for USB charging operation.
Check the USB pin connector first and try to clean it. Then proceed to check the components shown on the solution below.
Nokia 6720c USB charging problem solution
Check the fuse first if it is already busted or burned out, then the chip diode for possible short circuit.
Just replace if found damaged. IF the fuse and the diode were both okay, Rework or try to replace the USB charging chip.
