Samsung will launch the Galaxy S26 series with One UI 8.5, and in the run-up, the company is testing One UI 8.5 beta releases on the Galaxy S25 series. The first One UI 8.5 beta was released early in December, followed by a second beta a couple of weeks later. Samsung is kicking off the new year with a third One UI 8.5 beta release for the Galaxy S25 series.
Tarun Vats reports on X that One UI 8.5 beta 3 with firmware version ending in ZA3 is rolling out for Galaxy S25 series owners in South Korea, Germany, and the UK for now. Users in India are also receiving this release, although for them, it will be the second beta release (despite being the same build).
We expect this One UI 8.5 beta to be released in the US and Poland very soon.
This ZA3 build is approximately 1.2GB in size and features the January 1, 2026, security patch level. The changelog mentions that the following bugs have been fixed:
Fixed the clock display error on the lock screen
Resolved the issue related to favorites in the phone app
Fixed the issue where Now Briefing does not display
Improved the screen lagging issue when using Live Effect in the gallery
Improved the issue of high power consumption when a specific app is running
Enhanced the visibility of the search button on the widget addition screen
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