Overview
- Users across Reddit, Samsung Community and X say green or pink vertical lines have appeared on Galaxy S23 screens during or immediately after installing One UI 8.5.
- Affected owners also describe other display and UI problems such as flickering font size, unexpected zooming, stuttering animations and scaling glitches.
- Community troubleshooting points to AMOLED control-line or driver bond faults that can be revealed by heat during updates, which causes a permanent colored vertical strip when a control line fails.
- Some users who sought repairs report service centers refusing free replacements and escalating complaints to consumer portals, while Samsung’s earlier S23 display replacement program ended on December 25, 2025.
- Reports concentrated in hot, humid regions like India suggest environmental heat during installs may raise risk and could leave owners facing substantial out-of-warranty repair bills if Samsung does not act.