A phone that won't charge is one of the most frustrating problems — especially because the cause isn't always obvious. Is it the port? The cable? The adapter? A software issue? Before assuming you need a repair, there are a few quick checks that can save you a trip to the shop entirely.
Step 1: Rule Out the Obvious Causes First
Try a different cable
Charging cables — especially USB-C and Lightning cables — are the most common cause of charging problems. They fray, internal wires break near the connector, and cheap cables fail quickly. Try a different cable that you know works. If charging resumes, the problem was the cable, not the port.
Try a different charger or socket
Wall adapters can fail too. Try plugging your existing cable into a different USB adapter, or plug into a computer's USB port to test. Also try a different wall socket — occasionally the issue is as simple as a dead socket.
Restart your phone
A software glitch can occasionally cause a phone to not recognise a charger. A full restart clears temporary software states. Plug in after restarting and see if charging begins.
Step 2: Inspect the Port
Use a torch and look directly into the charging port. What you're looking for:
- Lint or debris — pockets are full of it, and over time lint compacts into the port, preventing the cable from making full contact. This is extremely common and easily fixed.
- Bent or damaged pins — on Lightning connectors especially, the central pin can get pushed to one side. This looks like a bent metal tab inside the port.
- Corrosion or discolouration — green or white deposits inside the port suggest moisture damage.
- A broken piece of a previous cable — occasionally a connector tip snaps off inside the port.
Cleaning the port safely
If you can see lint compacted in the port, it can sometimes be gently removed with a wooden toothpick (not metal — you'll damage the pins). Work carefully and don't push debris deeper in. A single shot of compressed air can also help dislodge loose debris. Never use water, cotton wool buds, or metal objects inside the port.
💡 Lint in the charging port is the #1 cause of "won't charge" issues we see. Before booking a repair, shine a torch in and have a careful look — a two-minute clean fixes it surprisingly often.
When It Needs Professional Repair
If the port looks clean, you've tried multiple cables and adapters, and the phone still won't charge — the port itself likely needs to be repaired or replaced. Signs that point to a hardware fault:
The cable only charges if held at a certain angle
This means the port's internal contacts are worn or the port has become physically loose from the circuit board. It's a common sign that the port needs replacement, not cleaning.
The port physically feels loose or wobbly
USB-C ports can detach from the internal solder points after repeated stress. If the port has any movement when you plug in, it needs resoldering or replacement by a technician.
The phone charges wirelessly but not via cable
If your phone supports wireless charging and it works, but wired charging doesn't, the problem is definitively the port or the charging flex cable — not the battery or logic board. This is a relatively straightforward repair.
The phone shows "liquid detected" errors (iPhone)
iPhones will block charging if they detect moisture in the Lightning or USB-C port. This is a safety feature. If the error appears persistently without real moisture present, there may be damage to the port's moisture detection circuit — something a technician can diagnose.
How Much Does a Charging Port Repair Cost?
Charging port repairs typically cost £40–70 at an independent shop, depending on the phone model. The repair involves replacing the charging flex cable or the port assembly. For most phones it takes 30–60 minutes. It's a significantly cheaper fix than replacing the phone — and if the rest of the phone is working well, it's almost always worth it.
Charging Port Repair in North Finchley
Walk in or book online. We'll diagnose the fault and quote you before starting any work — no obligation.