← Back to Blog

What to Do When Your Phone Will Not Charge

October 15, 2026 · Marion Phone Repair

You plug in your phone and nothing happens — no charging icon, no lightning bolt, no vibration. Or the phone acknowledges the cable but charges painfully slowly or keeps connecting and disconnecting. Charging problems are one of the most common phone issues, and most are caused by something between the wall and the phone — not the phone itself.

Check the cable

The charging cable is the most common point of failure. Cables endure daily bending, pulling, coiling, and often get stepped on or run over by chair wheels. They fail gradually, which makes the problem intermittent before it becomes permanent.

• Inspect the cable visually. Look for fraying, kinks, exposed wires, or a bent connector — especially at both ends where the cable meets the plug. Lightning cables are particularly prone to fraying near the Lightning connector
• Try a different cable. This is the single most effective troubleshooting step. If a different cable charges the phone normally, the original cable is the problem. Replace it
• Watch for uncertified cables. Cheap, uncertified Lightning cables often stop working after iOS updates. Apple's MFi program exists because non-compliant cables can deliver inconsistent power or be rejected entirely by the phone. If you are using a no-brand cable and your iPhone suddenly shows "This accessory may not be supported," the cable is the likely cause
• USB-C cables are not all equal. A cable that came with a Bluetooth speaker (designed for low-power data transfer) may not support the higher wattage your phone's fast charger needs. Use the cable that came with your phone or one rated for the correct wattage

Check the power adapter

The wall adapter (the block that plugs into the outlet) can also fail, and using the wrong adapter causes slow or no charging:

• Try a different adapter. Swap the wall block for another one, or plug the cable into a different power source (a different wall outlet, a laptop USB port, a car charger) to isolate whether the adapter is the problem
• Check the wattage. A 5W adapter (the small cube that older iPhones shipped with) charges a modern phone extremely slowly. For reference: iPhone 15 supports up to 27W, Samsung Galaxy S24 supports up to 25W, Google Pixel 8 supports up to 27W. Using a higher-wattage adapter (20W or above) with a compatible cable makes a dramatic difference in charging speed
• Wall outlet issues. Try a different outlet. Power strips with surge protectors can sometimes reduce voltage enough to prevent charging, especially if many devices are plugged in. Plug the charger directly into a wall outlet to test

Clean the charging port

The charging port on the bottom of your phone collects lint, dust, and debris from pockets and bags. Over months, this buildup compresses into a dense plug at the back of the port that prevents the cable from seating fully. The cable goes in, but the connector does not make solid contact with the pins inside the port.

How to clean it safely

1. Power off the phone
2. Use a wooden or plastic toothpick (not metal — metal can short the pins or scratch the contacts). A SIM ejection tool is too thick for most ports
3. Gently scrape along the back wall of the port, then along the bottom. You are looking for compressed lint — it often comes out as a small, dense plug
4. Use short bursts of compressed air to blow out loosened debris. Do not use full continuous pressure, which can push debris deeper
5. Try the charging cable again. If the cable now clicks in more firmly than before, lint was the problem

Port lint is so common that it accounts for a significant percentage of charging complaints at repair shops. Many phones brought in for "broken charging" walk out fixed after a 30-second cleaning.

Restart the phone

A software glitch can prevent the phone from recognizing the charger or managing the charging process correctly. A restart clears the state:

• iPhone: hold the side button and either volume button, slide to power off, wait 30 seconds, then turn back on and plug in
• Android: hold the power button, tap Restart (or Power off, wait 30 seconds, then turn on)

If the phone started refusing to charge after a software update or after installing a new app, a restart is especially likely to help. If the problem returns, try booting into Safe Mode (hold Power, then press and hold Power Off until Safe Mode appears on Android) to see if a third-party app is interfering with charging.

Check for software issues

Battery optimization features

Modern phones have features that intentionally slow or pause charging to preserve battery health. These can look like charging problems if you are not aware of them:

• iPhone Optimized Battery Charging: iOS learns your daily routine and may hold the charge at 80% overnight, completing to 100% just before you typically unplug. If your phone seems stuck at 80%, this feature is likely active. Check Settings, Battery, Battery Health and Charging. You can toggle it off, though Apple recommends leaving it on
• Samsung Adaptive Charging / Protect Battery: similar feature. Settings, Battery, Battery Protection. When enabled, it may cap charging at 85%
• Google Pixel Adaptive Charging: slows charging overnight. Settings, Battery, Adaptive Charging

Moisture detection

Both iPhones and many Android phones detect moisture in the charging port and refuse to charge to prevent corrosion and short circuits:

• iPhone: shows a "Liquid Detected" alert. Do not override it — wait for the port to dry completely (set the phone in front of a fan or in a dry area for 30 minutes to an hour). Do not blow into the port (breath contains moisture) or use heat
• Samsung: shows a water drop icon and "Moisture has been detected" notification. Same approach — let it dry. If the warning appears when the port is dry, restart the phone. Persistent false moisture warnings sometimes require clearing the USB Settings app cache: Settings, Apps, USB Settings, Storage, Clear Cache

Wireless charging not working

If wireless charging is not working:

• Alignment. The phone's charging coil must align with the pad's coil. On most phones, the coil is in the center-upper area of the back. Small adjustments in position can make the difference between charging and not charging
• Case thickness. Thick cases, cases with metal plates (for car mounts), and cases with built-in card holders or wallets can block wireless charging. Remove the case and test
• Pad wattage. A 5W wireless pad charges very slowly. Qi2 and MagSafe pads at 15W charge significantly faster. Make sure the pad's power adapter supports the higher wattage — a 5W pad plugged into a USB 2.0 port cannot deliver more than 2.5W regardless of what the pad is rated for

Signs the charging port needs repair

If none of the above fixes work, the charging port hardware may be damaged:

• Cable falls out or sits loose. If every cable you try falls out of the port with no resistance, the port's retention mechanism is worn out from repeated insertions or from having the cable tugged while plugged in
• Visible damage to the port. Bent or missing pins inside the port, scorch marks (from a short circuit or using a damaged cable), or a cracked port housing
• Charges only at a specific angle. If you have to hold the cable at a particular angle or prop the phone to maintain contact, the port connector is misaligned or partially broken internally
• Phone charges from wireless but not wired. This confirms the battery and charging circuit work — the port or its connections are the problem

Charging port repair in Marion

Marion Phone Repair diagnoses and fixes charging problems on iPhones, Samsung Galaxy, Google Pixel, and other phones. We clean ports, replace damaged charging assemblies, and test with calibrated equipment to confirm normal charge rates. Most charging port repairs are completed same-day.

Related Articles