Over the past few days, Samsung Galaxy S23 owners, including some on the S23+ and S23 Ultra, have been posting about a familiar but unwelcome visitor on their displays: thin green or pink vertical lines that show up out of nowhere.

Right on cue, every fresh round of Samsung software updates seems to bring its own little surprise, and the latest One UI 8.5 rollout is no exception.

The reports started surfacing on X and across Samsung’s own community forums, and by now there are enough of them that it’s hard to write this off as a handful of unlucky units.

One user shared a picture of his S23 Ultra’s screen with a bright green line running top to bottom, insisting the phone had no drops, no cracks, and no water exposure, just a software update that, in his words, turned a pink line into a green one within days. Another user reported the same thing on a Galaxy phone shortly after updating.

Owners in India are being quoted between INR 15,000 and INR 19,500 for an out-of-warranty screen replacement, while a similar repair in other markets is pegged at roughly $205.

This isn’t actually a new problem for Samsung. The “green line of death,” as some forum regulars half-jokingly call it, has been popping up on Galaxy phones for years now, going back to the Galaxy S20 series, with Plus model affected the most.

Samsung even ran free display replacement programs in India, regardless of warranty status, because the issue was tied to a hardware fault in the display panel rather than something a software patch could realistically cause on its own.

Repair technicians point toward the display’s flexible cable connectors or the panel driver itself. A new update doesn’t need to “cause” damage outright; it just needs to nudge an already-weakened part past its breaking point.

For now, this is very much a developing situation. We’ll update this piece if Samsung issues any kind of statement or offers free replacements.

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