Samsung Galaxy Phones and the Green Line Issue in 2025: A Persistent AMOLED Display Problem

Samsung has long been known for its superior display technology, especially the vivid and vibrant AMOLED screens used in its flagship Galaxy smartphones. Over the years, Samsung extended this technology to mid-range and even some budget-friendly models. While AMOLED panels offer deep blacks, high contrast ratios, and energy efficiency, they also come with a frustrating flaw — the green line issue.

Samsung Galaxy Green Line Display Problem

Despite improvements in hardware and software, this problem has haunted users for years and continues to do so in 2025. In this blog post, we will dive deep into what this issue is, why it occurs, which devices are affected, and how Samsung has responded.

What Is the Green Line Issue?

The green line issue refers to an unexpected line or multiple lines — usually green, pink, or white — that suddenly appear on a phone's display. These lines generally appear vertically, cutting through the screen from top to bottom, although horizontal lines have also been reported in rare cases.

This problem isn’t just a minor display inconvenience — it severely disrupts user experience by affecting visibility and usability. It overlays on all types of content, including apps, videos, and images, and doesn't go away with restarts or software tweaks.

Where Is It Being Reported?

This issue has been most frequently reported in India, but complaints are also surfacing from users around the world. Platforms like Reddit, Samsung Community Forums, and X (formerly Twitter) are filled with images, videos, and stories from affected users. Common search terms like “Samsung green line” yield thousands of results showing users asking for solutions or recounting their experiences.

The Origin: What Causes the Green Line Problem?

While there’s no single confirmed cause, experts and users alike have identified several potential factors:

1. Display Panel Degradation

The AMOLED panel might develop pixel disturbances over time. A defective or degraded screen is often the root cause. Since AMOLEDs rely on organic compounds, their longevity can be limited, and faulty batches can degrade faster.

2. Software Updates

Some users noticed the issue after installing a software update, particularly major One UI versions like One UI 7. The sudden appearance of lines post-update suggests a possible software-hardware incompatibility, though it may also trigger latent hardware flaws.

3. Overheating

High internal temperatures, especially during charging, gaming, or software updates, can stress internal components. While most phones are built to handle heat dissipation, poor thermal design or aging components might lead to the green line showing up.

4. Physical Damage

Dropping the phone, pressing it too hard, or exposing it to direct sunlight for long durations can damage the display. Though accidental, this is a common cause that accelerates display wear and tear.

Samsung Galaxy Devices Affected by the Green Line Issue

Here are some of the Samsung Galaxy phones most commonly reported to have the issue:

• Galaxy Note 20 Series

• Galaxy S20 Series

• Galaxy S21 Series

• Galaxy S22 Series

• Galaxy S23 Series

• Galaxy S24 Series

• Galaxy Z Fold Series

• Galaxy Z Flip Series

• Galaxy A-Series (selected models)

• Galaxy M-Series (selected models)

A few users have even claimed that the issue appeared on their Galaxy S25 series, although such reports are extremely rare and statistically negligible.

Real-Life Examples: Visual Proof Online

Screenshots and videos from real users show vertical green or pink lines in the center, on the edges, or even multiple lines on the display. These visuals have become common across YouTube, Reddit, and tech forums, especially under threads like:

• "Green Line after One UI 7 update"

• "Galaxy S20 screen issue"

• "Samsung screen replacement denied"

One Reddit user, kingshukroy01, shared a detailed thread showing how the green line appeared just after a routine update, sparking conversations about the real reason behind it.

Official Samsung Response

Samsung has acknowledged this issue and rolled out a free one-time screen replacement program in India. The program allows affected users to get their display replaced without cost, provided certain conditions are met:

• The phone must pass a physical inspection.

• The device should not have water damage or unauthorized repairs.

• The issue must not have resulted from intentional damage.

Important Notes:

• The replacement program is reportedly not covering the Galaxy S23, S24, or S25 series, despite user complaints.

• Users whose phones are out of warranty often find themselves ineligible unless the service center offers goodwill support.

• The program has been extended until September 2025 in India, which gives affected users more time to claim the replacement.

To know more about your eligibility, it’s advised to visit a Samsung Service Center near you.

Can the Green Line Be Fixed With Software?

Unfortunately, no. Once the line appears, it usually means physical damage or degradation of the screen. No Over-the-Air (OTA) update or software patch has been shown to fix it.

In some rare instances, the green line disappeared temporarily after a software update, but such cases are exceptions rather than the norm.

Is It Just Samsung?

No — this is not a Samsung-exclusive problem. Other brands like OnePlus, Xiaomi, Vivo, and Oppo have also faced green line complaints, particularly on AMOLED-equipped devices.

However, Samsung, being the largest AMOLED panel manufacturer, tends to have more devices in the market using this technology, which naturally leads to higher reported numbers.

Tips to Minimize the Risk

Here are some preventive tips that might help you reduce the chances of facing the green line issue:

1. Avoid using the phone while charging, especially when running high-performance apps.

2. Keep your phone cool — avoid heavy use during hot weather.

3. Don’t expose your phone to direct sunlight for extended periods.

4. Install updates overnight using the scheduled update feature.

5. Use original charging accessories to avoid excessive heating or electrical surges.

What Can Samsung Do Better?

Despite acknowledging the problem, Samsung hasn’t publicly addressed the root cause in detail. A few things they should consider:

• Create a dedicated task force to investigate recurring AMOLED panel issues.

• Offer longer warranty extensions for display-related problems.

• Improve quality control for display panels during manufacturing.

• Provide transparent communication to customers rather than quietly offering selective solutions.

Final Thoughts: Our Take

In 2025, it's clear that the green line issue continues to plague Samsung Galaxy users. While it may not affect a large percentage of devices, it’s too common to be ignored. AMOLED displays are a hallmark of Samsung’s premium experience, and any flaw in them undermines the user’s trust.

Samsung’s free replacement program is a welcome step, but its exclusion of newer models leaves many customers dissatisfied. The company needs to treat this not just as a customer service issue, but a quality control challenge that needs a permanent solution.

Until then, users must stay cautious, follow best practices, and seek help immediately if they notice any lines appearing on their screen.

Do you have a Samsung phone affected by the green line issue? Share your experience on our social media pages or leave a comment below. Let’s make our voices heard!