How to Fix Green or Pink Lines Appearing on Samsung Galaxy Screen

A green or pink vertical line on your Samsung Galaxy's AMOLED screen is a known issue. Sometimes it's a temporary software glitch; other times it indicates hardware damage.

Step 1: Force Restart the Phone

Hold Volume Down + Side button for 10 seconds. If the line disappears after restart, it was a temporary display driver glitch.

Step 2: Check If It's a Software or Hardware Issue

Take a screenshot — if the line does not appear in the screenshot, it's a hardware issue (broken pixels or display connector).
If the line does appear in the screenshot, it's more likely a software or driver issue.

Step 3: Update One UI

Go to Settings → Software Update → Download and Install. Display driver bugs are sometimes patched via OTA updates.

Step 4: Boot into Safe Mode

If a third-party app (like a display filter or screen recorder) is causing the line, Safe Mode will reveal this since third-party apps are disabled.

Step 5: Factory Reset

If it's confirmed as a software issue, back up data and perform a factory reset.

Is It Covered by Samsung Warranty?

Situation	Coverage
Spontaneous lines with no physical damage	✅ Usually covered
Lines after a drop or impact	❌ Physical damage — not covered
Lines after water exposure	❌ Water damage — not covered

If It's Hardware: Visit a Samsung Service Center. This is a display panel issue that requires professional screen replacement. Samsung has acknowledged this issue on some Galaxy models and sometimes offers free repairs.