Ghost touches on a touchscreen occur on smart phones and tablets when the screen registers touches or taps without any actual input from the user. This issue can be frustrating, but there are several potential reasons and solutions for it:
Screen Calibration: Check if your device has a screen calibration option in the settings. Calibrate the touchscreen to ensure accurate input detection.
Clean the Screen: Dirt, dust, or smudges on the screen might be causing false touches. Clean the screen thoroughly and try again.
Touchscreen Sensitivity: Adjust the touchscreen sensitivity settings in your device settings. Sometimes, setting it to a lower sensitivity can help eliminate ghost touches.
Faulty Screen Protector: If you are using a screen protector, it may be causing interference. Try removing the screen protector to see if the issue persists.
Software Update: Ensure that your device’s operating system and all apps are up to date. Sometimes, software bugs can be fixed with updates.
Restart or Reboot: Restarting your device can sometimes resolve temporary glitches causing ghost touches.
Hardware Issues: If the problem persists, there might be a hardware issue with the touchscreen. In this case, it’s recommended to contact the device manufacturer or visit a service center for professional assistance.
Check for Interference: External factors such as electronic interference from other devices or a malfunctioning digitizer can also cause ghost touches. Try using your device in a different location to rule out interference issues.
Static electricity: Static electricity can sometimes cause issues with touchscreens. Static electricity is more likely to occur in dry environments. Increasing the humidity in the room can help reduce static build-up. Some clothing materials and accessories can contribute to static build-up. If you are experiencing issues with static electricity during winter, when wearing certain types of gloves, try using touchscreen-compatible gloves.
Faulty charger: Why does not my tablet touch screen work when powered with third party mains power supply, but works with the original power supply? The reason why the other power supply caused the touch screen to fail was related to the noise given out by the power supplies and the touch screen electronics sensitivity to this noise. If you have problems when your phone is connected to charger, then try if disconnecting the phone from the charger helps.
Factory Reset: If all else fails, consider performing a factory reset on your device. This will erase all data, so make sure to back up important information before doing so.
Professional Repair: If the issue persists and your device is still under warranty, consider contacting the manufacturer or authorized service center for professional assistance. They can diagnose and repair hardware-related problems.
Remember to follow the manufacturer’s guidelines and recommendations specific to your device when troubleshooting touchscreen issues.
More material on the subject:
Touch screens and charger noise
https://www.epanorama.net/newepa/2013/03/12/touch-screens-and-charger-noise/
8 Ways to Fix Ghost Touch Problems With Android
Is your phone acting as though a ghost keeps tapping and touching the screen? Here are all the steps you can take to fix it.
https://www.makeuseof.com/how-to-fix-ghost-touch-problem-android/
Touchscreen issues caused by static electricity (demo and PROOF)
https://community.oneplus.com/thread/193169
Erratic touchscreen behavior or frozen screen caused by static electricity from body or charger
https://forum.fairphone.com/t/erratic-touchscreen-behavior-or-frozen-screen-caused-by-static-electricity-from-body-or-charger/74635
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