Does your phone keep making the “charging connected/disconnected” sound again and again? Does your device stop charging if you move it slightly? Or does your charging icon appear and disappear every few seconds? This issue is incredibly common on both Android and iPhone devices and usually gets worse with time. In this complete guide, you’ll learn all the real causes behind this problem—and all the permanent fixes.
Whether the problem comes from a faulty cable, charging port damage, software bugs, or battery issues, this guide will walk you through every solution step by step. By the end, your phone should charge normally again without disconnecting randomly.
Why Your Charger Keeps Disconnecting
Before trying the fixes, it’s important to understand what typically causes charging interruptions:
- Damaged charging cable (most common cause)
- Loose or bent charging port
- Dirt or dust inside the charging port
- Defective charging brick or USB port
- Bent charging pins inside the port
- Overheating battery
- Faulty power IC (charging chip)
- Software glitch in charging software
- Moisture detected in the charging port
Most charging disconnect problems are caused by simple issues that you can fix at home. Let’s fix everything one by one.
Fix 1: Try a Different Cable
This is the number one cause of charging interruptions. Many charging cables break internally even if they look brand new from the outside. They bend, twist, or lose connection inside the rubber coating.
Try this:
- Use a different cable (preferably original or high-quality)
- Borrow a cable from someone else
- Avoid super-cheap cables—they fail fast
If the phone charges normally with a different cable, your old cable is the cause.
Fix 2: Try a Different Charging Brick
Your charging adapter may be failing. Fast-charging adapters especially tend to malfunction over time due to heat and internal component wear.
Test with:
- A different charging brick
- A lower watt adapter (slow but stable)
- A power bank (great for testing)
If the issue disappears, replace your adapter.
Fix 3: Clean the Charging Port
Dust, lint, and debris build up inside the charging port. Even a tiny layer can prevent your cable from making proper contact. This is one of the most common reasons for chargers disconnecting.
How to clean the port safely:
- Turn off your phone
- Use a wooden toothpick to gently remove dirt
- Use a soft brush (small paintbrush or toothbrush)
- Blow lightly to remove dust
Never use metal items — they can damage or short-circuit the charging port.
Fix 4: Check if the Charging Port Is Loose
If your phone only charges when the cable is held at a certain angle, the charging port is loose. This usually happens because:
- The charging port pins are bent
- The internal solder connection is cracked
- The port is worn out after years of use
Test this by gently wiggling the cable while connected. If charging comes and goes, the port is damaged and may need replacement.
Fix 5: Remove the Phone Case
Many users don’t realize that their phone cases put pressure on the cable or prevent the charger from sitting firmly in the port.
Remove the case and try charging again. If the connection becomes stable, the case was blocking the cable.
Fix 6: Try a Different Power Source
Sometimes the problem is not with your phone or charger—it’s the outlet.
Try charging from:
- A different wall outlet
- A laptop USB port
- A power bank
- A surge protector with a stable output
If charging becomes stable, the old power source had voltage instability.
Fix 7: Turn Off Fast Charging
Fast charging increases heat. When your phone overheats, it may disconnect charging repeatedly to protect the battery. Disabling fast charging helps keep the temperature stable.
How to disable fast charging (Android):
- Settings → Battery → More Battery Settings
- Turn off “Fast Charging” or “Super Fast Charging”
This often fixes random charging disconnections.
Fix 8: Restart the Phone
A software reboot can fix charging glitches, especially when the phone falsely detects wrong voltage or unstable connection.
- Press and hold Power → Restart
Try charging again after rebooting.
Fix 9: Cool Down Your Phone
If your phone is too hot, it will stop charging to prevent battery damage. This looks like a “disconnect” even though the phone is simply protecting itself.
Cool it down:
- Remove the case
- Stop gaming or heavy multitasking while charging
- Move the phone to a cooler room
- Let it rest for 10–15 minutes
When temperature drops, charging becomes stable again.
Fix 10: Check for Moisture in the Charging Port
If your phone shows a “moisture detected” warning or disconnects repeatedly after using it in humid weather, sweat, rain, or steam may be inside the port.
How to dry the port:
- Turn off the phone
- Leave it in a dry area for 1–2 hours
- Use a fan to blow air (do NOT use a hair dryer)
Do not charge while the port is wet — you can permanently damage the charging IC.
Fix 11: Update Your System Software
Charging management is controlled by your system software. A bug in the OS can cause charging interruptions.
Update steps:
- Go to Settings
- Software Update
- Download and Install
Fix 12: Boot Into Safe Mode
If a third-party app is interfering with charging, safe mode can help identify the issue.
How to enter Safe Mode:
- Press and hold Power button
- Tap and hold “Power Off”
- Select “Safe Mode”
Now try charging. If it stops disconnecting, an app you installed is the cause.
Fix 13: Replace the Charging Port
If all home fixes fail, the charging port is likely damaged physically. This is extremely common due to constant cable plugging and unplugging.
You may need a charging port replacement if:
- The cable wiggles inside the port
- Phone charges only at certain angles
- Charging disconnects even with multiple cables
Charging port replacement is usually cheap and fast in repair shops.
Fix 14: Damaged Charging IC (Power Chip)
The charging IC is the chip that manages charging. If it gets damaged due to moisture, overheating, or short circuits, your phone may constantly disconnect charging.
This requires professional motherboard-level repair.
Fix 15: Battery Replacement
If your battery is old or swollen, it may cause charging instability.
Signs of battery degradation:
- Fast battery drain
- Heating while charging
- Phone shutting down randomly
- Charging stuck at random percentages
Replacing the battery solves this instantly.
Conclusion
If your charger keeps disconnecting randomly, the fix is usually simple—a new cable, a clean charging port, or a different adapter. But if the problem continues even after trying all of the steps, your charging port or battery may need repair.
Follow the fixes in order to identify the exact cause. For most users, this guide permanently solves the issue and restores stable charging.