Three culprits and how to identify them

A familiar situation: you plug your iPhone in to charge before bed, and in the morning, it's at 3%. Or zero. The cable seems to be connected, but the screen is dark. Your first reaction is panic. But more often than not, the cause is trivial, and you can sort it out at home in 10 minutes. The main thing is to go through the steps in order.

The Cable

The most frequent culprit. Lightning and USB-C cables last on average a year to a year and a half with daily use, and cheap third-party ones even less. Bends near the connector, kinks, and wear and tear all kill the wire prematurely. Externally, the cable may look fine, but inside, one of the contacts is no longer working.

We had a case: a customer brought in an iPhone 13, having spent three weeks thinking the problem was with the phone, and almost took it to another service center to replace the battery. It turned out to be a third-party cable bought on a marketplace. We plugged in an original Apple one, and it charged instantly.

The Adapter

They burn out less often, but they do burn out. Especially if there are power surges in the grid or if the block has been dropped. Sometimes the adapter simply doesn't provide enough power — a 5W charger from an old iPhone 6 will work very slowly on an iPhone 15 Pro Max or fail to work at all with a specific cable. This is not a malfunction, just a power incompatibility.

The port on the iPhone itself

The port is a consumable part. Over a year of active use, dust, pocket lint, and crumbs get inside. The contacts oxidize, and dirt prevents the cable from seating firmly. A characteristic symptom of a clogged port is that the cable connects, but disconnects after five minutes, or charging only works if you hold the wire at an angle.

Recently, a guy came in with an iPhone 14 with exactly this complaint. We looked into the port and found a whole ball of felt from his jeans pocket. We cleaned it out, and everything worked without needing any spare parts.

What to check yourself

  1. Try another cable. Preferably an original Apple one or an MFi-certified one. If it charges, the cable is to blame; replace it.
  2. Change the adapter. Charge from a computer via USB or borrow someone else's block. If it helped, the issue is with the adapter.
  3. Look into the port. Use good lighting or your smartphone's flashlight. If you see gray fluff or dirt, carefully clean it out with a toothpick. No metal objects, no alcohol inside, and no force.
  4. Restart your phone. It sounds trivial, but it helps. A software glitch sometimes blocks charging.
  5. Try wireless charging. If your iPhone supports MagSafe or Qi, place it on a stand. Did it charge? Then the problem is definitely in the port or the cable, not the battery.

When you can't do without a technician

If all checks have been done, the cables and adapters are definitely working, and the phone still won't charge, it's an internal issue. Possible causes: bent contacts inside the port, a failed power management chip, the battery has degraded below a critical level, or moisture got in at some point and the consequences are only showing up now.

You shouldn't try to open up an iPhone yourself. We regularly see phones after "DIY repairs" — torn battery cables, damaged antennas, and in the end, the work becomes twice as much and twice as expensive.

If none of the methods above helped, come to Iclub Service at 35 Kommunisticheskaya St. Diagnostics are free, and the inspection time depends on the device's condition. If a port replacement is required, we will agree on the timeframe after an inspection. We will provide a price after diagnostics, once we know exactly how much work is involved.