Samsung Galaxy S23 series receives One UI 9. The update has already arrived in Europe Home News The Galaxy S23 series is receiving stable One UI 9 with Android 17 in Europe Our reader's Galaxy S23 Ultra, purchased in Slovakia, is already downloading the update For the S23 series, this is the last promised major system update Sdílejte: Adam Kurfürst Published: 21. 10. 2026 08:30 Advertisement Just last week, only Galaxy S23 owners in South Korea had One UI 9. Now, the wait for the update is over in Europe too. **Samsung has started rolling out the stable version of the overlay with Android 17 to European Galaxy S23, S23+ and S23 Ultra devices** and one of our readers confirmed that the update has arrived on his model. First beta testers, then others Stable One UI 9 was first released for the S23 series in South Korea, and now, according to SamMobile, it is expanding beyond Samsung’s home market. **Europe is next in line.** The update carries the firmware designation S91xBXXUAGZIF and was first received by phones participating in the beta program. These downloads are only 516.69 MB, as they already contain most of the new features. Owners who did not try the beta version have also received it. However, the rollout is gradual, so the update may not arrive on all phones at the same time. So, if you don’t see the update yet, it will probably be enough to wait a few more days. One of our readers also confirmed the update The European launch is also confirmed by a report from our reader. **One UI 9 has just arrived on his Galaxy S23 Ultra, which he bought in Slovakia.** The screenshot he sent us shows One UI 9.0 with Android 17, firmware S918BXXUAGZIF, and a security patch from October 5, 2026. The package size is almost 3.5 GB, as the device was not part of the beta program. What does One UI 9 bring? Compared to One UI 8.5, the new version mainly adds **more customization options for the quick panel**. Samsung DeX mode, Samsung Notes app, and accessibility features have also been improved. An indicator that warns about location usage has also been added, along with new artificial intelligence features. For the Galaxy S23 series, this is the last promised major Android upgrade. **Samsung promised four major Android upgrades and five years of security patches for the phones when they were launched in February 2023.** The phones started with One UI 5.1 and Android 13, so One UI 9 is the fourth and final promised jump. According to SamMobile, owners cannot rely on One UI 9.5, but security updates should continue until early 2028. Has One UI 9 already arrived on your Galaxy S23? Source: SamMobile, own Thanks, Jirko! About the author Adam Kurfürst Adam studuje na gymnáziu a technologické žurnalistice se věnuje od svých 14 let. Pakliže pomineme jeho vášeň pro chytré telefony, tablety a příslušenství, rád se… More about the author Sdílejte: Aktualizace Android 17 One UI 9 Samsung Samsung Galaxy S23 Samsung Galaxy S23 Ultra You might be interested in One UI 10 is set to fundamentally change Galaxy phones, an insider claims. You might pay extra for some AI features Adam Kurfürst 19. 10. This year's 98″ Samsung TV has dropped in price by 17 thousand since September. It boasts a 120Hz frequency Adam Kurfürst 18. 10. Nest Mini, Nest Audio, and the first Google Home are getting a big update. You can try it out in advance Jakub Kárník 17. 10. A bunch of Samsung phones are getting One UI 9 with Android 17! Is your model on the list? Jakub Kárník 16. 10. Android Auto 18 is here. At first glance, nothing changes, but big new features are coming Adam Kurfürst 15. 10. MiniLED for 8 thousand? This Samsung TV is a great deal right now Jakub Kárník 14. 10.