Start with the cable and power adapter
The cable is the most common culprit. Bend the cable gently along its entire length while the tablet is plugged in — if the charging light flickers or comes on, the cable has a broken wire inside. Replace it. If you have another USB cable in the house, try that one first before buying a new one.
Check the power adapter itself. Feel it after it has been plugged in for a minute — it should be warm, not hot. If it is cold, the adapter is dead and needs replacement. Look for the model number on the adapter (usually printed on a label) and buy the exact same one, or a universal adapter rated for your tablet's voltage and amperage.
Make sure you are using the correct power outlet. Plug a lamp or phone charger into the same outlet to confirm it works. If the outlet is dead, try a different one in another room.
Key Takeaways
- A damaged charging cable is the most common reason a tablet stops charging, and you can test this by trying a different cable.
- The charging port on your tablet can accumulate lint and dust that blocks the connection, and cleaning it with a dry toothpick or soft brush often restores charging.
- If your tablet charges only at certain angles or intermittently, the port itself may be loose or damaged and may need professional repair.
- Restarting your tablet or forcing it to shut down completely can fix charging problems caused by software glitches.
- If the battery is completely dead, your tablet may take 10 to 15 minutes to show any charging sign, so wait before assuming the charger is broken.
Clean the charging port on your tablet
Lint, dust, and debris collect inside the charging port over time, especially if your tablet lives in a bag or pocket. This buildup blocks the metal contacts and prevents charging. Look into the port with a flashlight — if you see fuzz or dirt, cleaning it will often restore charging when ready.
Use a dry toothpick, a wooden skewer, or a soft brass brush (the kind sold for cleaning electronics). Insert it gently into the port and scrape the sides and bottom. Do not use metal tools or force — the port is fragile. Blow out the loosened debris with your mouth or a can of compressed air. Do not use a wet cloth or liquid cleaner inside the port.
After cleaning, plug in your charger and wait a few seconds. The charging light should appear.
Restart your tablet or force it to shut down
Software glitches can prevent your tablet from recognizing the charger even though the hardware is fine. A restart often fixes this. Hold the power button until the shutdown menu appears, then tap "Power Off" or "Shut Down." Wait 30 seconds, then press the power button again to turn it back on.
If your tablet is completely unresponsive or will not turn off normally, force a shutdown instead. On most tablets, hold the power button and volume-down button together for 10 to 15 seconds until the screen goes black. Wait 30 seconds, then press the power button alone to restart.
Plug in the charger after the tablet has restarted. If charging begins, the problem was a software glitch.
Check whether the battery is completely drained
A tablet with a completely dead battery may not show any charging sign for 10 to 15 minutes. This is normal. Plug it in, leave it alone, and wait. Do not press buttons or try to turn it on during this time.
After 15 minutes, look for a charging light, a vibration, or a boot logo on the screen. If you see any of these, the charger is working and the battery is charging. If nothing appears after 20 minutes, the charger or battery is likely the problem.
Inspect the charging port for damage
If cleaning the port did not work, look closely at the metal contacts inside. They should be shiny and evenly spaced. If they are bent, corroded, or blackened, the port is damaged. You may also notice that your tablet charges only when the cable is held at a certain angle — this is a sign the port is loose or the contacts are worn.
Corrosion (green or white buildup on the contacts) usually means liquid has entered the port. Do not attempt to clean corroded contacts yourself — the damage is internal. A damaged port requires professional repair or replacement, which typically costs between $50 and $150 depending on the tablet model and repair shop.
Try a different charger if you have one available
If you have access to another tablet charger, try it. Use only a charger rated for your tablet's voltage and amperage — the numbers are printed on the adapter. Using a charger with the wrong voltage can damage the battery, so check before plugging in.
If a different charger works, your original adapter or cable is faulty and needs replacement. If a different charger also does not work, the problem is your tablet's charging port or battery, not the charger.
When to seek professional repair
If you have tried cleaning the port, restarting the tablet, waiting for a dead battery to charge, and testing with a different charger, and none of these steps restored charging, the problem is inside the tablet. The charging port may be damaged, the battery may have failed, or the charging circuit on the motherboard may be broken.
Contact the tablet manufacturer's support line or visit an authorized repair center. Bring your tablet and charger so the technician can test both. Repair costs vary widely — a battery replacement typically costs $40 to $80, while port replacement or motherboard repair can cost $100 to $200 or more. For older tablets, repair may cost more than the tablet is worth, so compare the repair price to the cost of a new device before deciding.
Frequently Asked Questions
Why does my tablet charge only when the cable is bent a certain way?
The cable has a broken wire inside, or the charging port is loose. Test with a different cable first — if the new cable charges normally, replace the old one. If the problem continues with a new cable, the port is damaged and needs professional repair.
Can I use a phone charger to charge my tablet?
Only if the voltage and amperage match what your tablet needs. Check the numbers printed on both the phone charger and your tablet's original charger. If they are the same, it is safe to use. If the phone charger has lower amperage, charging will be very slow but safe. Never use a charger with higher voltage.
My tablet is hot while charging. Is that normal?
Tablets warm up during charging, but they should not be too hot to touch. If the tablet or charger is too hot to hold comfortably, unplug it when ready. This can indicate a battery fault or charger failure. Do not use that charger again until a technician inspects it.
How long should it take for a dead tablet to start showing a charging sign?
A completely dead battery may take 10 to 15 minutes to show any sign of charging. If nothing appears after 20 minutes with a working charger, the battery or charging circuit is likely damaged.
Is it safe to use my tablet while it is charging?
Yes, it is safe. However, using it while charging generates extra heat, which can slow charging speed and stress the battery over time. If you need to use it, keep it in a cool room and avoid demanding tasks like gaming or video streaming.