Tablet ignores touch near charging port: what to check

Your tablet responds everywhere except near the charging connector, or the problem appears only while it is plugged in. That can point to an accessory, pressure from a case, or a fault in the screen's touch sensor.

Compare the same area while charging and unplugged with the Touch Screen Test. This helps separate a repeatable dead spot from a problem caused by the charger or something pressing on the screen.

Test the area around the charging port

1. Open the Touch Screen Test on the tablet. Hold it in the position where the problem usually happens.
2. With the charger unplugged, tap and drag slowly across the screen close to the charging port. Check whether the test shows each touch, and repeat the same path a few times.
3. Connect the charger and repeat the same taps and drags. Keep your grip and the tablet's position as similar as possible so you are comparing the charger, not a different angle or hand position.
4. If you use a case or screen protector, remove the case and test again. If it is safe and practical to do so, compare with the protector removed too. Do not force a glass protector off if it is cracked or firmly attached.

Touch screens sense contact through the glass, usually using changes in an electrical field. A test can show where touches register, but it cannot identify the exact electrical cause. The comparison between plugged-in and unplugged results is the useful clue.

What the result means

The area works unplugged but fails while charging

The screen may be reacting to electrical noise from the charger, cable, outlet, or connected power source. This does not prove which part is responsible. Try a different compatible charger and cable, one at a time, to narrow it down.

The same area fails whether the tablet is charging or not

A consistent blank patch is more likely to be a touch-screen dead zone than a charging problem. Dirt, moisture, a damaged protector, pressure, or a fault in the digitizer (the layer that senses touch) can all interfere. If the patch remains after you remove the case and clean the glass, treat it as a possible hardware fault.

The problem goes away when you remove the case

The case may press against the edge of the screen or push the tablet out of shape near the connector. Check whether the case is warped, fitted incorrectly, or obstructing the screen. Do not keep using a case that visibly bends or presses on the tablet.

The test registers touches, but one app ignores them

The screen can detect your input, so the issue may be limited to that app, its controls, or the way it responds to edge gestures. Close and reopen the app, then try another app in the same area. If only one app has the problem, check for an update or contact its support team.

How to fix it

1. Unplug the charger and compare. If touch works normally as soon as you disconnect power, avoid using that charger and cable until you have tested a different compatible set. Stop using an adapter or cable that is damaged, unusually hot, or loose.
2. Clean and dry the screen. Turn the display off, then wipe it with a clean, soft cloth. Dry your hands too. Moisture, grease, or grit near the edge can make taps unreliable.
3. Remove pressure from the edge. Take off the case and check whether the charging connector or cable is being pushed sideways. A tight case or a bent plug can put pressure on the tablet. Do not bend the connector to make it fit.
4. Try another known-compatible charger and outlet. Use a charger and cable intended for your tablet, and connect them directly to a wall outlet rather than a hub or computer port. If the problem follows one charger or cable, stop using that accessory. If it happens with several compatible chargers, the tablet may be at fault.
5. Restart the tablet and install system updates. A restart can clear a temporary touch or charging glitch. On an iPad, check Settings › General › Software Update. On an Android tablet, open Settings › System › Software update, though the menu name varies by manufacturer. On a Windows 11 tablet, open Settings › Windows Update and install available updates.
6. Check touch-related accessibility settings. On an iPad, open Settings › Accessibility › Touch › Touch Accommodations and check whether a custom setting is changing how taps are accepted. These options affect touch timing, but they will not fix electrical noise from a charger. Android menu names and options vary by model, so search Settings for touch or accessibility. A Mac does not have a built-in touchscreen, and macOS settings do not control an iPad's touch response.

When it's likely to be hardware

If the same part of the screen fails while unplugged, with the case removed, after a restart, and in more than one app, the touch layer or its connection may be damaged. A crack is not required for a digitizer fault. A recent drop, a bent frame, or a repair can also affect touch response.

Back up important data before arranging service. If the tablet is under warranty, contact the manufacturer or seller before opening it or paying for a repair. For an older device, ask a repair shop to inspect the screen assembly and charging port. Replacing a charger will not fix a dead zone that stays in exactly the same place when the tablet is unplugged.

Why charging can change touch response

A charging cable carries power into the tablet while the touch screen is sensing very small electrical changes at the glass. A poor-quality, damaged, or incompatible accessory can add interference that makes those changes harder to read. This is one possible explanation, not a diagnosis: a test in a browser cannot inspect the charger, measure electrical noise, or confirm a failing screen component.

If the issue happens only with one charging setup, use a different compatible charger and cable. If it follows the tablet across accessories and remains in the same spot, arrange a hardware inspection.