Check these first
Do not assume the cause from the symptom alone. First determine whether the issue affects the whole phone, one app, one connection, or one accessory. Work from low-impact checks toward recovery or repair.
- Make sure the screen and your fingers are clean and dry
- Temporarily remove the case and screen protector
- Check whether the problem occurs only while charging
Critical diagnosis for this symptom
Determine whether the whole screen or only a region is affected; check moisture, protector, and charger influence.
Lock the device if ghost touches may trigger unintended actions.
Escalate with device, OS, error, and reproduction details when the issue persists after restart, controlled comparison, and update checks, or when physical damage, abnormal heat, account suspension, or carrier provisioning is suspected.
Narrow down the cause
| Scope of the issue | Where to check next |
|---|---|
| Only one app is affected | Check app permissions, updates, storage, cache, and reinstall options |
| The whole phone is affected | Check restart, system updates, free storage, and system settings |
| Other devices have the same issue | Check the network, service, charger, or accessory |
| The issue began after a drop or liquid exposure | Avoid repeated power or charging attempts and contact official support |
See the troubleshooting flow
Safe step-by-step process
Complete one step at a time and test after each change. Do not change several settings at once.
- 1Wipe the display with a soft dry cloth and remove gloves, water, oil, or debris before testing again.
- 2Remove the case and protector, then test the center, edges, and the exact area that does not respond.
- 3Disconnect the charger. If ghost touches occur only while charging, test a different certified adapter, cable, and outlet.
- 4Restart normally; if the screen cannot be used, follow the model-specific forced restart procedure.
- 5If only one app is affected, update it and review permissions or display overlays. On Android, compare behavior in Safe mode when appropriate.
- 6If the same area always fails, the glass is cracked, or the display is lifting, back up the phone and arrange official repair.
Actions to avoid
- Using sharp or metal objects as a stylus
- Pressing hard on the display for an extended time
- Factory-resetting before separating software and hardware causes
Prevent the issue from returning
- Use a correctly fitted, good-quality screen protector
- Avoid damaged cables and uncertified chargers
Frequently asked questions
What if my screen looks different?
Menu names and locations vary by OS, manufacturer, model, region, and software version. Use the Settings search field and check the manufacturer guide for your exact model.
When should I stop troubleshooting?
Stop as soon as the issue is fixed. Change one setting at a time so you can identify what solved the problem and reverse it if necessary.
What should I do if the issue remains?
Record how to reproduce it, verify your backup, and contact the manufacturer, carrier, or app provider most closely related to the problem.