While the public beta program remains exclusive to the Galaxy S25 series, Samsung is quietly expanding its One UI 8.5 development behind the scenes to a much wider range of phones. Internal testing has now begun for four more devices, including popular budget and mid-range models.
The latest phones to join Samsung’s internal test servers for the upcoming software are the Galaxy M35, A16 4G, A15 4G and the A07 4G.
The Galaxy M35 has appeared on test servers in India and Europe with firmware version M356BXXU6DYL2. This follows the recent appearance of its sibling, the Galaxy M34, in testing, confirming Samsung is preparing the update for its M-series lineup.
Testing is also underway for the 4G variants of Samsung’s entry-level phones. The Galaxy A15 4G has been spotted in Europe with build number A155FXXU8EZA1, while the Galaxy A16 4G is undergoing tests in Europe and Turkey with version A165FXXU7DZA5.
Perhaps most notably, the ultra-affordable Galaxy A07 4G, which launched recently with One UI 7, is also being prepared for the update. It has appeared on servers in Vietnam, Malaysia, and Thailand with build version A075FXXU2CZA6.
These internal builds are not available for public download and are used by Samsung to ensure stability before a wider release. Their appearance signals that the company is making steady progress toward a broad rollout.
With the stable version of One UI 8.5 expected to debut in the coming months, these test builds indicate that Samsung is on track to bring the update to dozens of devices. We’ll keep updating you with the latest One UI updates on this website. Stay tuned.
source: Sammyguru
