If you hear a crackling sound when disconnecting the cable from your device, don’t worry, this is completely normal. It will not affect its usage and it will not damage your device.

How can I solve this issue?

Most of these issues come from the wall charger and the contact pin of the phone. First, clean the port of your phone and the wall charger. Make sure there is no dust in the ports as it could prevent charging. Then test the cable after you’ve cleaned your phone and your wall charger. If possible, try using a different wall charger and phone.