Touchscreen Not Responding? Fix Ghost Touches and Dead Zones
Fix a touchscreen that does not respond, has dead zones or registers ghost touches on phones, tablets and laptops. Cleaning, calibration and driver steps.
Touchscreen problems come from dirt, screen protectors, charger noise, settings or damage. Mapping which areas respond tells you which of these you are facing.
Common causes
- Dirt, moisture or a thick screen protector
- Charger electrical noise causing ghost touches
- Touch input disabled or driver issues
- Cracked digitiser or loose connector
Step-by-step fix
- Map dead zones — Use the grid mode of the touchscreen test and fill every cell to find areas that do not respond.
- Clean the screen — Wipe with a slightly damp microfibre cloth and dry your hands.
- Remove the protector — Peel off thick or bubbled screen protectors and test again.
- Unplug the charger — Cheap chargers can cause ghost touches. Test with the device on battery.
- Restart and update — Restart, then install system updates. On Windows, disable and re-enable the HID-compliant touch screen in Device Manager.
- Calibrate — On Windows use Tablet PC Settings → Calibrate. Phones can run touch diagnostics in their support app.
Tip: If the dead zone is a straight line or along an edge, it is usually a hardware fault in the digitiser.
Still not fixed?
Cracks, dead lines and spreading dead zones need a screen or digitiser replacement.
Did this guide fix your problem?
Frequently asked questions
What are ghost touches?
The screen registers touches you did not make, often from moisture, damage or charger noise.
Do screen protectors reduce sensitivity?
Thick glass protectors can. Some phones have a setting to increase touch sensitivity.
How many fingers should work?
Most devices track at least 5, often 10.