[nmfisher]

Counterpoint - I have an iPhone 6 that has exactly this problem. The cable doesn't get seated properly, so occasionally it stops charging or disconnects when attached to a computer.

[deberon]

Try cleaning the pocket lint out of it. Major quality of life improvement for me.

[Angostura]

Another +1 for lint. Use a wooden toothpick and be gentle

[roydivision]

This. I’ve just solved exactly those problems by cleaning out the hole.