Multiple Galaxy S23 Ultra users have recently reported the green line issue on their devices. In the latest news, X user @SamsungSWUpdate shared images of the base Galaxy S23 and S23 Ultra affected by the issue.


In many cases, the affected users reported that the phones didn’t have any physical damage or external factors like drops or water exposure. Almost all of the instances I came across on social media platforms and the community forum specifically mentioned that the issue occurred soon after an update.
This has left many users frustrated, especially since Samsung’s free screen replacement campaign for such issues has ended.
While @SamsungSWUpdate didn’t reveal anything about when or how the issue occurred, a post from December 2024 on the community forum notes, “I updated the software on my Galaxy S23 yesterday night and I went to sleep after. Today morning I wake up to green line on my screen.” It reportedly happened after updating to the November security patch.

A part of a more recent post from February on the community forum includes, “I was browsing through my phone and a green line suddenly pops up on the screen out of nowhere. I have tried everything but nothing seems to work. The green line is still there.” This one is a Galaxy S23 Ultra, and the issue appeared soon after installing an update (although the user didn’t mention which update it was).
Based on my research, most of the affected devices require a display replacement, while it’s not very difficult to guess that the reason isn’t an inappropriate use of the device.
It’s a shame that brands are promising nearly a decade of software updates, yet many users are, quite reasonably, choosing to avoid them. Not installing security patches also means compromised security of their data.
Notably, the green line isn’t a Samsung exclusive issue. Several OnePlus devices faced the issue last year, and the company also addressed the “green line” display issue on some of its AMOLED phones with a “Green Line Worry-Free Solution”, that includes a lifetime warranty for affected devices, free screen replacements, and research and development of enhanced display technology to prevent future occurrences. It remains to be seen how Samsung responds to this issue.
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