Symptoms
- Screen doesn't respond to touch in one area or at all
- Screen registers taps or swipes you didn't make
- Issue appeared right after a drop
Likely causes
- CommonLoose digitizer (touch layer) connector from the impactThe ribbon cable connecting the touch layer can shift or partially disconnect on impact.
- PossibleCracked digitizer layer under the glassEven without visible glass cracks, the touch-sensing layer underneath can crack.
- CommonScreen protector shifted or cracked, interfering with touchA cracked or lifted protector can cause ghost touches that have nothing to do with the phone itself.
What to do
- Remove any screen protector and test touch response again.
- Restart the phone, since a software glitch can sometimes mimic touch problems after a jolt.
- Note exactly which areas of the screen don't respond or register phantom taps.
- Avoid pressing on the screen trying to 'fix' it, which can worsen a loose connector.
- If ghost touches or dead zones persist after removing the protector and restarting, this is a hardware issue needing a technician.
Tools and parts
Replacement screen assemblySearch: “screen replacement for your model”
When to call a pro
A repair shop can check the digitizer connector and reseat or replace it — this is one of the more common drop-related repairs.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.