Why my phone say it's charging when it's not plugged on?

[Android Central Question]

My phone was charging and when I unplugged it, I heard it charging still. Like when u plug it in and then you unplug it. Every 5-10 seconds you're hearing the sound. Only time it stop is when I take out my battery and put it on. If I put it back to charge is the same thing all over again. What can I do?

 

[SpookDroid]

Sounds like your charging port is damaged. If it has a false contact it may make the phone 'think' it's still plugged in.

Try cleaning out the port with a soft brush and/or compressed air to see if any debris might the issue, but you might need to replace the port if that's the issue.