Overview
- The third One UI 8.5 beta for the Galaxy S25, S25+, and S25 Ultra is based on Android 16 QPR2.
- Availability has begun in South Korea and the United States, with additional regions expected shortly.
- Firmware ZZA3 addresses a lock screen clock display error, phone app favorites issues, and a Now Briefing display problem.
- The update also improves lag when using Live Effect in the gallery, reduces high power use tied to a specific app, and makes the widget search button easier to see.
- The release includes the January 2026 security patch, which Samsung has not yet detailed, and in some markets such as India this rollout will count as the second beta.