Symptoms
- Taps in a specific zone do nothing
- Rest of the screen responds normally
- Often the edge or a corner near a past drop
- Typing on the keyboard misses certain keys
Likely causes
- CommonDigitizer damage from an impact in that areaA drop that lands on one corner can crack just that section of the touch sensor.
- CommonDebris or moisture trapped under a screen protectorA stuck particle or liquid film can block touch in one spot.
- PossibleLoose display connectorPartial disconnection can cause dead zones that shift when the phone flexes.
- Less commonSoftware UI element rendering issueRarely a specific app has a broken touch target rather than the hardware being at fault.
What to do
- Test the dead zone in several different apps to confirm it's not just one app's layout.
- Remove the screen protector and case, clean the screen, and retest the same spot.
- Restart the phone to rule out a temporary software issue.
- Gently flex or press near the edges (without excessive force) while watching if the dead zone moves, which suggests a loose connector.
- Note whether the dead zone appeared right after a drop or bump.
- Back up your data in case the dead zone spreads over time.
- If cleaning and restarting don't help, plan for a screen or digitizer repair.
Tools and parts
- Microfiber cloth
Screen assembly or digitizerSearch: “screen digitizer replacement for [your phone model]”
When to call a pro
See a repair shop if the dead zone doesn't clear after cleaning and a restart, or if it grows over time.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.