Why is my Samsung not charging when plugged in?

Most often it's the cable or adapter, lint packed into the USB-C port, or a worn battery — in that order. Swap the cable and adapter for a known-good set, check the port with a torch, and give a drained phone 30 minutes on the charger before concluding anything.

How do I know if it's the charging port or the battery?

Try wireless charging (S, Note and Z series). If the phone charges wirelessly but not by cable, it's the port. If it won't charge either way, or it charges but drains fast and jumps percentages, it's more likely the battery.

What does the moisture icon mean, and can I ignore it?

The phone has detected moisture in the port and blocked charging to protect the pins. Don't override it — let the phone dry in an airy spot for a few hours. If the icon stays for days in a dry room, the port or its sensor is faulty and worth a proper look.

Can I clean the charging port myself?

Gently, with a wooden or plastic toothpick to ease out compacted lint. Never use a metal pin, and don't blast compressed air straight in. If a gentle clean doesn't help, stop — the next step is a proper inspection, and our diagnosis is free.

How much does it cost to fix a Samsung that won't charge?

A charging port replacement is $35–$65 and a battery replacement $35–$70, depending on model, with Original Grade parts. Board-level faults are quoted after a free diagnosis. Prices are nett.

Samsung Not Charging: Port or Battery? (SG Guide)

When a Samsung won't charge, the cause is usually the cable or adapter, lint packed into the USB-C port, or a worn battery — in that order. The quickest way to narrow it down: try wireless charging. If the phone charges wirelessly but not on the cable, the port is the problem. If it won't charge either way, think battery or board. Here's how to work through it at home in about ten minutes, before you pay anyone anything.

By the Citri Mobile Repair Team · Updated July 2026 · Rated 4.8★ from 1100+ Google reviews · 15 years repairing phones in Singapore.

First, rule out the cheap stuff

More than half the "dead port" phones we see charge fine on a different cable. So before anything else:

Swap the cable and the adapter — both, not just one. Borrow a set you've seen charge another phone. Cables fail internally with no visible damage.
Try another wall socket, and skip the powerbank and the laptop USB port for this test — they can be the weak link themselves.
Leave it plugged in for 30 minutes. A deeply drained battery can show nothing on screen for a while before it accepts charge. A phone that "won't charge" after 30 seconds might just not be done waking up.
Take the case off. Some cases hold the plug a millimetre short of fully seated. It sounds silly until it's the answer.

The wireless charging test

This is the single most useful check, because it splits the problem in half. Wireless charging bypasses the USB-C port completely and feeds the same battery through a different path.

Charges wirelessly, not on cable → the port (or its small daughterboard) is faulty. Good news: that's one of the cheaper repairs.
Won't charge either way → the port is probably fine; suspect the battery or, less often, the main board.

One caveat: most Galaxy A-series phones don't have wireless charging — it's mainly the S, Note and Z series. If yours doesn't support it, skip this and lean on the other checks.

Look inside the port

Shine a torch into the USB-C port. Months of pocket lint gets compacted at the bottom by the plug, until one day the plug can't reach the pins. If the plug feels loose, doesn't click, or needs to be held at an angle to charge, packed lint or worn pins are likely.

You can try easing lint out gently with a wooden or plastic toothpick — never a metal pin, which can short or bend the contacts. No compressed air straight in, either; it just packs debris tighter. If a gentle clean doesn't change anything, stop — poking harder does more damage than it fixes.

If you see a water droplet icon ("moisture detected"), the phone has locked charging because the port reads wet. Unplug it, leave it somewhere airy for a few hours, and don't try to override the warning — charging a wet port corrodes the pins. If the warning stays for days in a dry room, the moisture sensor or port itself is faulty.

Signs it's the battery, not the port

A worn battery fails differently from a broken port. The tells:

It charges, but slowly — and drains faster than it fills.
The percentage jumps around: 40% to 15%, or the phone dies at 25%.
It only stays on while plugged in.
The back panel is lifting or the phone doesn't sit flat — that's a swelling battery. Stop charging it and get it replaced promptly; a swollen cell only goes one direction.

Samsung batteries are consumables. After two to three years of daily charging, this is the expected ending, and a replacement makes an otherwise-good phone feel new.

When it's neither: board faults

If the phone is completely dead — no charging icon, no vibration, nothing on a known-good charger after 30 minutes, wireless included — or it gets noticeably hot at the port the moment you plug in, the fault may be on the main board. Heat at the connector in particular means unplug it and stop. Board-level faults can't be diagnosed from the outside, which is why our diagnosis is free: we open it, find the fault, and quote before any work. Our guide on what to do when your Samsung isn't working covers the wider dead-phone checklist.

What each fix costs

Once you know which repair you're looking at, the numbers are straightforward. A charging port replacement runs $35–$65 and a battery replacement $35–$70 with Original Grade parts, depending on model — both are often done the same day when the part's in stock. Board faults are quoted after the free diagnosis. Prices are nett; the full price picture for every Samsung repair is in our Samsung repair cost guide.

Get it diagnosed in Singapore

Citri Mobile has been repairing phones in Singapore for 15 years, rated 4.8★ from 1100+ Google reviews, with four branches — People's Park/Chinatown, Tampines, Yishun and Jurong Point, open 11am–9pm daily. Walk-ins are welcome, but message or call +65 9456 6455 first so we can confirm we have your part in stock. Or look up your exact Samsung model for live prices.

Samsung not charging: FAQs

Why is my Samsung not charging when plugged in?: Most often it's the cable or adapter, lint packed into the USB-C port, or a worn battery — in that order. Swap the cable and adapter for a known-good set, check the port with a torch, and give a drained phone 30 minutes on the charger before concluding anything.
How do I know if it's the charging port or the battery?: Try wireless charging (S, Note and Z series). If the phone charges wirelessly but not by cable, it's the port. If it won't charge either way, or it charges but drains fast and jumps percentages, it's more likely the battery.
What does the moisture icon mean, and can I ignore it?: The phone has detected moisture in the port and blocked charging to protect the pins. Don't override it — let the phone dry in an airy spot for a few hours. If the icon stays for days in a dry room, the port or its sensor is faulty and worth a proper look.
Can I clean the charging port myself?: Gently, with a wooden or plastic toothpick to ease out compacted lint. Never use a metal pin, and don't blast compressed air straight in. If a gentle clean doesn't help, stop — the next step is a proper inspection, and our diagnosis is free.
How much does it cost to fix a Samsung that won't charge?: A charging port replacement is $35–$65 and a battery replacement $35–$70, depending on model, with Original Grade parts. Board-level faults are quoted after a free diagnosis. Prices are nett.