Why green line occurs on phone

A green line on your phone screen can result from various issues, including hardware defects and software glitches. Below is a summary of the typical causes for a green line on your phone display:

✅ 1. Hardware Issues (Most Common Cause)

• 🔧 Damaged Display or Screen

• Impact Damage: If the phone has been dropped or subjected to significant pressure, it may have harmed the OLED/AMOLED/LCD panel.

• Internal Fault: Even if there are no visible cracks, internal components such as display connectors or circuits could be compromised.

• 💥 OLED Burn-in or Pixel Defects

In AMOLED or OLED screens, individual pixels may fail or become stuck, occasionally resulting in vertical colored lines.

• 🔌 Loose or Damaged Display Cable

A poorly connected or damaged display ribbon cable within the phone can cause vertical lines to appear.


✅ 2. Software Issues (Less Common)

• ⚙️ Software Bug or Glitch

A rare bug in the display driver or a system glitch might lead to display artifacts like lines.

• Restarting the phone or entering Safe Mode can help determine if the line goes away.

•📱 Firmware Updates

Some users have noticed green lines appearing after a software update, particularly on certain devices (e.g., some Samsung, OnePlus, or iPhones with OLED screens).


✅ 3. Manufacturing Defect

• Certain phones (especially OLED models like iPhone X, Samsung Galaxy S20, OnePlus 8/9) have seen widespread reports of a single green vertical line appearing without any physical damage.

• This is often attributed to defective panels and may be eligible for warranty coverage or a quality recall.


✅ 4. Water or Moisture Damage

• Even without complete submersion, exposure to high humidity or water can lead to short circuits or corrosion, resulting in display issues.


🔍 How to Troubleshoot:

Restart the phone.

1. Enter Safe Mode – this helps eliminate third-party app interference.

2. Look for software updates.

3. Gently press around the screen to see if the line flickers or disappears.

4. Conduct a display test (dial codes like *#0*# on some Android devices).

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