The Galaxy S24+ has a larger, 6.7-inch QHD+ panel than the S24, which brings its own touch problems: more of the glass sits under a palm or a case lip, and a bigger sheet of glass shows a connection fault more clearly when it develops. If taps are missed or arrive on their own, look for the accessory first, since cases and protectors that grip the long edges of a 6.7-inch phone are the most common cause. If a green or pink line has appeared with no drop or water, that is a display fault, and it stays in screenshots and in Safe mode. The repair route is Samsung's display replacement, so the useful thing to do now is document the fault.
Differential
Likely causes of “Samsung Galaxy S24+ screen or touch input is not working correctly”, and how to tell them apart
- 1
A case or a protector gripping the long edges
What separates it Ghost taps along the edge when you hold the phone with one hand
How to confirm Take both off, hold the phone loosely and test; a case with a raised lip is the usual cause on a 6.7-inch screen
- 2
A palm resting on the edge of the panel
What separates it Pages scroll or buttons press while you are typing with two hands
How to confirm Settings, Display, Edge touch sensitivity and Accidental touch protection can be tuned
- 3
Greasy or wet glass
What separates it Taps register in the wrong place after cooking or rain
How to confirm Wipe the screen with a dry cloth and test again
- 4
An app that draws over the screen
What separates it Touch fails only when a floating button or a screen filter app is active
How to confirm Test in Safe mode; if touch works there, remove the overlay app
- 5
A display connection fault
What separates it A green, pink or white line, or a strip that never responds, in every mode
How to confirm The panel needs a Samsung repair; software will not clear it
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether touch is dead, ghosting or showing a line, and where on the screen
- Whether a screenshot shows the same line
- The case and protector fitted
- The One UI version and security patch date
Try in this order
0 of 6 completedTake everything off
ReversibleRemove the case, the protector and any sticker, and hold the phone by the back.
Look at the edge settings
ReversibleSettings, Display, and check Touch sensitivity and Accidental touch protection.
Run the touch test
ReversibleSamsung Members, Get help, Phone diagnostics, Touch screen.
Restart and update
ReversibleRestart, then install the newest patch.
Test in Safe mode
ReversibleHold the power key, touch and hold Power off and tap Safe mode.
Screenshot the line
ReversibleA clean screenshot with a visible line on the screen proves a panel fault.
Model-specific
What is true of this model and not of its siblings
- The S24+ panel
- A 6.7-inch Dynamic AMOLED 2X screen with a QHD+ resolution at up to 120 Hz and Gorilla Glass Victus 2; its size makes edge handling more important than on the S24.
- Backing up
- Use Smart Switch to a computer or Samsung Cloud before service so your data is safe if the repair replaces the whole display module.
Stop boundary
When this stops being a self-service repair
- !A line that shows in Safe mode and in a screenshot is a display repair
- !A cracked screen should be repaired promptly
- !Back up with Smart Switch or the cloud first
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Why do I get ghost taps on the edge of my S24+?+
The large panel means a palm or case lip touches the edge; remove the accessory and use Edge touch sensitivity settings.
What is Accidental touch protection?+
A setting that ignores touches when the phone is in a pocket or bag; it can also block a deliberate touch if the sensors are covered.
Can a green line on the S24+ be fixed without repair?+
No; it is a connection fault inside the panel module and needs a repair.
Does the QHD+ setting affect touch?+
No; resolution changes sharpness, not touch response.