Phone Won’t Charge — What to Check

Applies to: All Android and iPhone smartphones. This guide covers phones that will not charge at all, charge very slowly, or charge intermittently. It applies regardless of which charger, cable, or wall adapter you are using.

Important: If your phone feels unusually hot while charging, shows signs of swelling around the battery area, emits a burning smell, or makes crackling or hissing sounds — stop charging immediately, do not place it near flammable materials, and do not attempt to open the device. A swollen or overheating battery is a safety risk. Set the phone down in a clear open space and allow it to cool before doing anything else.

What is happening?

When a phone will not charge, the problem can be at any point along the charging chain — the wall outlet, the wall adapter (the plug block), the cable, the charging port on the phone, or the battery itself. The good news is that the majority of phone charging failures are caused by something simple: a damaged cable, a dirty charging port, or a faulty adapter. These are easy to identify and straightforward to deal with. True hardware failure — a dead battery or broken charging port — is less common and is usually only confirmed after ruling out everything else.

Common Causes of a Phone Not Charging:

A damaged, frayed, or worn-out charging cable
Lint, dust, or debris packed into the charging port on the phone
A faulty wall adapter or USB charger block
A faulty or low-power USB port on a PC or laptop used for charging
The phone has completely discharged and needs a few minutes before showing any response
The phone has overheated and paused charging to protect the battery
A software or firmware fault preventing the phone from recognising the charger
A damaged or worn charging port on the phone itself
A battery that has deteriorated and can no longer hold or accept a charge

Act ASAP — Do These First

Before assuming anything is broken, run through these quick checks. They take less than five minutes and resolve most charging failures.

1

Try a different cable. Charging cables are the single most common cause of phone charging failure. They bend, fray, and wear out — often with no visible damage. Swap the cable for a known working one and test immediately.
2

Try a different wall adapter. The plug block that the cable connects to can fail independently of the cable. If you have another adapter available, swap it out and test with that instead.
3

Try a different wall outlet. Plug the charger into a completely different socket in your home to rule out a faulty or tripped outlet.
4

Check the charging port on the phone for debris. Look carefully into the charging port with good lighting. It is very common for lint and dust to compact inside the port over time, preventing the cable from making proper contact. Do not insert anything metal. See Step 5 in the full guide below for safe cleaning instructions.
5

If the battery is completely flat, wait. A phone that has fully discharged may show no response at all for the first 5 to 15 minutes of charging. Plug it in and leave it alone for 15 minutes before concluding it is not charging.

Do NOT Do This

Do NOT insert metal objects such as pins, needles, or paper clips into the charging port to clean it — this will damage the pins inside the port and may cause a short circuit.
Do NOT continue charging a phone that is getting very hot, swelling, or making unusual sounds — disconnect it immediately and allow it to cool in an open space.
Do NOT attempt to open the phone or remove the battery yourself unless you have specific experience with phone repair — modern phones are not designed to be opened casually and components can be damaged easily.
Do NOT charge through a PC or laptop USB port as your primary method — most computer USB ports do not deliver enough power to charge a phone reliably, especially while the phone is in use.
Do NOT bend or force the charging cable to get it to make contact — this is a sign the cable or port is damaged and forcing it risks making the problem worse.

Step by Step — Full Diagnosis

1

Isolate the cable as the cause.
Use a different cable — one that you know is working — and connect it to the same adapter and outlet you have been using. If the phone starts charging, the original cable was faulty. Cables are the most common failure point in any charging setup and are inexpensive to replace.
2

Isolate the wall adapter as the cause.
Using the cable you have confirmed is working, try a different wall adapter. If the phone now charges, the original adapter was the problem. Adapters can fail without any visible signs of damage.
3

Test the wall outlet.
Plug another device — such as a lamp or a different phone charger — into the same wall outlet to confirm it is providing power. If the outlet is dead, try a different one. If outlets in an entire room are not working, check your home’s fuse box or circuit breaker for a tripped switch.
4

Restart the phone.
A software fault can occasionally prevent a phone from recognising that a charger is connected. Power the phone off completely, wait 30 seconds, power it back on, and then reconnect the charger. Check whether the charging symbol appears on screen.
5

Clean the charging port safely.
Lint and debris compacted inside the charging port is an extremely common cause of charging failure, particularly in phones carried in pockets or bags. To clean the port safely, use a wooden toothpick or a soft-bristled toothbrush. Gently work along the inside edge of the port to loosen and remove any debris. Do this with the phone powered off. Use good lighting and a magnifying glass if available. Take your time — the port is small and the pins inside are delicate. A can of compressed air held at a distance can also help dislodge loose debris. Never use anything metal inside the port.
6

Check whether the phone is overheating.
Phones are designed to slow down or pause charging when they detect that the battery temperature is too high. This is a protective feature, not a fault. If the phone feels warm, move it to a cooler location, remove any case that may be trapping heat, and allow it to cool for 20 to 30 minutes before attempting to charge again. Do not place it in a refrigerator or freezer — sudden cold can cause condensation inside the device.
7

Check charging behaviour in safe mode (Android only).
On Android phones, a third-party app can occasionally interfere with charging behaviour. To test this, boot the phone into safe mode — this temporarily disables all downloaded apps. The method varies by phone model, but on most Android phones you can access safe mode by holding the power button, then pressing and holding the on-screen Power Off option until a Safe Mode prompt appears. If the phone charges normally in safe mode, a recently installed app is likely the cause. Remove any apps installed around the time the problem began.
8

Check the charging port for physical damage.
With good lighting, look carefully into the charging port. Check whether any of the small pins inside are bent, broken, or pushed to one side. Also check whether the port feels loose or moves when you insert the cable — this can indicate that the port has become detached internally from the circuit board, which requires professional repair.
9

Consider the age and condition of the battery.
Phone batteries degrade over time. After two to three years of regular use, a battery may no longer charge fully, may drain very quickly, or in some cases may stop accepting a charge altogether. If your phone is more than two or three years old and no other cause has been identified, battery degradation is a likely contributor. Battery replacement by a qualified phone repair technician is usually straightforward and relatively low cost compared to replacing the device.

Tip: Wireless charging can serve as a useful diagnostic tool. If your phone supports wireless charging and it charges wirelessly but not via cable, this confirms the charging port or cable is the problem — not the battery or the phone’s internal charging circuit. This narrows the repair significantly.

How to Know the Emergency is Over

Your phone is charging correctly again when you see all of the following:

The charging symbol or battery indicator appears on screen when the cable is connected
The battery percentage is increasing over time
The phone is not getting unusually hot during charging
The cable sits firmly in the port without needing to be held at an angle
The phone charges to full capacity within a normal time frame for your device

Once charging is confirmed as working, monitor the phone over the next few charge cycles to make sure the issue does not return. If it charges intermittently or only at certain angles, the charging port or cable is likely still partially damaged and will need attention.

If the Problem Persists

If your phone still will not charge after working through all the steps in this guide, the problem is most likely one of the following: a damaged charging port, a degraded or failed battery, or a fault on the phone’s internal charging board. All of these require professional attention.

Visit a phone repair shop. A qualified technician can test the charging port, measure the battery’s health, and determine whether the fault is repairable. Charging port replacement and battery replacement are among the most common and affordable phone repairs. In many cases the repair can be completed the same day.

Check your warranty. If your phone is less than one year old and developed this fault without physical damage or liquid exposure, you may be covered under the manufacturer’s warranty. Contact the retailer or manufacturer directly to enquire about a repair or replacement under warranty terms.

In the meantime: If your phone has wireless charging capability, use that as a temporary workaround while arranging a repair. If it does not, a battery pack or power bank can provide short-term power if the battery still has some capacity remaining.

A phone that will not charge is one of the most fixable device problems there is. In the vast majority of cases, the solution is a new cable, a cleaned port, or a battery replacement — all straightforward and low-cost fixes.