How to Fix a Phone That Won’t Charge
Before you panic about a dead battery, work through the cheap fixes first. Most “won’t charge” phones come back to life with a new cable or a cleaned-out port. Here is the order to try, for iPhone and Android.
A phone that won’t charge feels like an emergency, but the cause is usually trivial and free to fix. In the overwhelming majority of cases the battery and the phone are fine — the problem is a worn cable, a tired adapter, or pocket lint jammed into the charging port. This guide walks the fixes in the right order, cheapest and most likely first, so you find the real cause fast instead of buying a battery you don’t need. The steps work the same way on iPhone and Android except where noted.
Key takeaways
- Swap the cable and adapter first — they fail far more often than the phone.
- Clean the port — packed lint is the #1 real cause; use a wooden or plastic toothpick, never metal.
- Force restart to rule out a frozen phone that has stopped responding to the charger.
- If a liquid-detected warning shows, stop charging, dry the port and wait — and only suspect the battery once everything else is ruled out.
Step 1: Swap the cable and adapter
Start here, because cables and plugs are the parts that wear out. The thin wires inside a charging cable flex thousands of times and eventually break, often near a connector where you can’t see it. Try a different known-good cable and a different wall adapter, ideally certified ones (MFi for iPhone, or a reputable USB-C charger for Android). If a borrowed cable charges your phone, yours is the problem — replace it. A classic sign of a dying cable is one that only charges when you hold it at a certain angle or wiggle it.
Step 2: Clean lint out of the charging port
This is the single most common real fix, and most people skip it. Every time the phone goes in a pocket or bag, fluff packs into the bottom of the charging port and forms a felt-like plug that stops the cable seating fully. The cable looks connected but makes no contact. With the phone switched off, shine a bright light into the port: if you see grey fuzz at the bottom, that is your culprit. Gently scrape it out with a wooden or plastic toothpick, working from the back wall outward, and a short burst of dry compressed air can clear the rest.
Never put metal in the charging port. A pin, needle or paperclip can short the delicate contacts, scratch them, or snap off inside — turning a free fix into a repair bill. Use only wood or plastic. And avoid cheap, non-certified chargers: poorly made adapters can deliver unstable power, damage the battery, or in rare cases be a fire risk. Stick to the maker’s charger or a reputable brand.
Step 3: Try a different power source
Not all power sources are equal. A laptop USB port, a hub, a weak car charger or a low-output wireless pad may trickle in too little power to register, especially on a modern phone. Plug your adapter directly into a known-working wall outlet rather than a USB port, and confirm the outlet itself is live by testing it with a lamp or another charger. If the phone charges from the wall but not from your laptop, the laptop port was simply too weak — not a fault with the phone.
Step 4: Force restart a frozen phone
Sometimes the hardware is fine but the software has hung, and a frozen phone can stop acknowledging the charger entirely. A force restart clears that state. On an iPhone, press and quickly release volume up, press and quickly release volume down, then press and hold the side button until the Apple logo appears (keep holding past the power-off slider). On Android, press and hold the power button for 10 to 30 seconds until the phone restarts; some models need power plus volume down. After it reboots, reconnect the charger.
Step 5: Check the cable and port for damage
If swapping didn’t help, inspect closely. Look along the whole cable for fraying, kinks or exposed wire, and check both connectors for bent pins, discoloration or a plug that feels loose in the socket. Then examine the phone’s port for bent contacts, green or white corrosion, or debris you missed. A cable that has to be propped at an angle to work is worn out internally and will only get worse — replace it rather than nursing it along.
Step 6: Rule out slow charge versus no charge
Make sure you are solving the right problem. A weak adapter or a thin, low-quality cable can charge so slowly that the percentage barely moves — particularly if you keep using the phone while it’s plugged in, since the screen and apps can draw more than the charger supplies. Leave the phone untouched on a strong wall charger for an hour and recheck. If it gained even a few percent, this is a slow-charging issue (better cable and adapter needed), which is a very different fault from gaining nothing at all.
Step 7: Let a fully dead battery sit on charge
A battery that has drained completely flat behaves oddly: plug it in and the screen may stay black for several minutes with no charging icon, looking for all the world like a dead phone. Give it time. Connect a known-good charger and leave it for 15 to 30 minutes before concluding anything. The charging screen, or the first signs of life, often appear only after the battery has crept above a minimum safe voltage. Patience here saves a lot of needless worry.
Step 8: Check for a liquid-detected warning
If your phone flashes a liquid or moisture-detected alert when you plug in, it has deliberately blocked wired charging to protect the USB-C or Lightning port from corrosion and short circuits. Do not override it. Unplug, wipe the connector, and leave the phone in a dry, well-ventilated spot for a few hours so the port can dry naturally. Skip the old rice trick and never use a hair dryer’s heat. Once the moisture clears, the warning disappears and normal charging resumes; in a pinch, a wireless charger sidesteps a wet port entirely.
When to suspect the battery or port
If you have tried a known-good cable and adapter in a live wall outlet, cleaned the port, force-restarted, and waited out a long charge with no result, the fault is likely in the hardware — a worn-out charging port or a failing battery. Tell-tale signs include a swollen back or screen lifting at the edges, a phone that gets unusually hot, a port so loose the cable falls out, or a battery that holds almost no charge. At that point, stop improvising and book a repair with the maker or an authorised service centre. A battery this far gone is also a safety matter, so don’t keep forcing it. For prevention going forward, our guide to extending phone battery life covers habits that keep the battery healthy for longer. Last updated 20 June 2026.
Frequently asked questions
What is the most common reason a phone won’t charge?
A faulty cable and lint packed into the charging port are the two most common causes by a wide margin, well ahead of an actual battery or hardware fault. Always test a different known-good cable and adapter, then gently clean the port with a wooden or plastic toothpick before assuming the phone is broken.
How do I safely clean a charging port?
Turn the phone off, shine a light into the port and gently loosen the compacted lint with a wooden or plastic toothpick, working from the back outwards. Never insert anything metal, which can short or scratch the contacts. A short burst of dry compressed air can help dislodge the last of the debris.
My phone says liquid detected and won’t charge. What now?
That warning means moisture is in the USB-C or Lightning port and the phone has blocked charging to protect itself. Unplug, leave the phone in a dry, airy place and wait a few hours for the port to dry. Do not use rice or a hair dryer, and avoid charging until the alert clears on its own.
Is it slow charging or not charging at all?
These are different problems. A weak adapter or thin cable can charge so slowly the percentage barely rises, especially while you use the phone. Leave it untouched on a strong wall charger for an hour and recheck. If it gains nothing at all, treat it as a no-charge fault and work through cable, port and power source.
When should I suspect the battery or port and seek repair?
If a known-good cable and adapter in a working wall outlet still do nothing after a clean port and a force restart, the battery or charging port may have failed. Swelling, heat, a cable that only works at an angle, or no response after a long charge all point to service. Book a repair rather than forcing it.
Sources & further reading
- Apple Support — If your iPhone won’t charge
- Google Pixel Help — Fix charging problems on Pixel phones
- Samsung Support — Galaxy phone won’t charge
This guide is independently produced. We reference primary documentation from device makers and security authorities (NIST, CISA). Tudug is reader-supported and may earn from ads.