When your iPhone doesn't charge, it's one of the lowest moments in the smartphone experience. I mean that's when we realize how important this tiny little activity is and how it ultimately controls our entire smartphone experience.
There can be a lot of complex reasons why an iPhone won't charge. We've covered some of these already. But sometimes, the most obvious gets overlooked and that just happened. Fixing a problem with an iPhone 5/5s not charging could be as simple as … dirt.
Also Read: iPhone/iPad Not Charging
The lightning dock, though small, has the ability to collect dust/dirt over the course of time. It's natural. You take your iPhone 5/5s with you to a lot of places. We do clean our phones occasionally but we don't usually clean the ports: the headphone jack or the lightning dock. And dust accumulates inside these voids over time.
Dust or dirt can cause a couple of issues with charging.
The easiest damage it can do is it prevents charging completely. You might have tried with a variety of cables, alternated between a wall-charger and the USB port but to no avail. The dust that's accumulated prevents the connections to close correctly, preventing the charging connections.
The other thing that can happen is a little strange: your iPhone charges for a few minutes and then stops charging abruptly. This is kind of disastrous because you leave the iPhone connected assuming that the charging will go through to 100%. Hours later you just see an iPhone sitting at 30%, where you need it to be fully charged.
Removing this dust/dirt can solve this problem and it's as simple as that. But how to remove it?
Here's how: You can use a thumb tack or a paper clip (stretch out one of the ends). Use this to gently scrub the edges inside the lightning dock. Gently being the key word. Remove the dust and, if possible, blow air into the dock to clear it of other tiny specks.
Now try connecting the cable again and charge your iPhone. Did it fix the charging issue?