I have issue in usb connector notification

[Tarun-Soi]

Hey I'm using Samsung f12 mobile .i have a issue with the usb connector connected/disconnected repeatedly , is there any solution to it .. 

[Tanish_jain]

How to fix the issue ?
1. Restart it , then check if it is fixed if it's not then.
2. Clean the charging port with cotton ball in a toothpick.
3. Last option take it to your local mobile shop , and tell them the issue