If a green or pink line appeared on your screen after updating to One UI 8.5 on your Samsung Galaxy S23, you are not alone. Over the past few weeks, hundreds of users worldwide have encountered this issue. I will say right away: this is not a software glitch that can be fixed by restarting. This is matrix damage.

Why this happens

One UI 8.5 is a heavy update in terms of hardware load. The phone heats up significantly during installation, and the AMOLED displays in the S23 lineup are extremely sensitive to sudden temperature changes. No one has officially confirmed a direct link between overheating and the lines, but the coincidence is too obvious: complaints flooded in right as the update started rolling out massively.

A story popped up on foreign forums: one user placed their phone on a tray with ice during installation to prevent overheating. It sounds like a joke, but there is some logic to it—an OLED matrix really does not like heat.

At our service center, green lines on Samsung phones are nothing new. About three times a month, Galaxy S21, S22, and A-series models are brought in with the exact same issue. But usually, this is caused by a drop or moisture ingress. For firmware to start killing screens en masse—I do not recall anything like that in my 5000 repairs.

What to do right now

If you haven't installed the update yet—don't rush. Wait a couple of weeks: Samsung will most likely roll out a fix or at least officially acknowledge the issue. If the firmware is already downloaded and waiting to be installed—launch it in a cool place, place the phone on a hard surface, and don't cover it.

If lines have already appeared:

1. Take a screenshot of the screen—it will come in handy when contacting the service center.

2. Find the receipt or box with the purchase date. Samsung replaces the screen for free if no more than three years have passed since the purchase.

3. Contact an official service center with a claim—the defect occurred after a software update, which is an argument in your favor.

Warranty and real prices in Russia

The official Samsung warranty in Russia is 24 months. If less than two years have passed and the phone has not been dropped or exposed to water, insist on a warranty replacement. The fact that the defect appeared right after the firmware update is a strong argument and should be used.

If the warranty has expired, official repair will cost from 15 000 to 25 000 rubles depending on the model. At iClub Service, we install original and high-quality compatible matrices. The price is noticeably lower than the official price tag, and the result has been proven over thousands of repairs. 📱

Something unexpected

Here is what really surprises me about this story: a green line on an AMOLED display is physical damage to a specific column of pixels. Triggering this programmatically under normal conditions is impossible. But overheating during prolonged loads (and firmware installation is precisely such a load) is quite capable of finishing off a matrix that already had a hidden micro-defect. The phone worked fine—and suddenly under stress, the defect surfaced. This explains why the problem doesn't affect all S23 devices, only some owners. 🔍

One UI 8.5 has already managed to stand out with other bugs—some people had dark mode broken, others experienced video call glitches. But those cases were software-related. The screen is hardware. Rolling back the firmware won't save you here. Samsung has not yet officially commented on the situation, so keep an eye on the news and don't rush to click "Install".

If a line has already appeared and the warranty is over, come in for diagnostics at iClub Service, Novosibirsk, 35 Kommunisticheskaya St. We will see what can be done and give you a fair price. ✅