Samsung has widened the rollout of One UI 9, based on Android 17, to the Galaxy S23, S23+ and S23 Ultra, as well as the Z Fold 5 and Z Flip 5 foldables. The stable update started in South Korea, then reached Europe; on 23 October it was also reported in the United States.
Where it is available
On the S23 series, the stable version made its debut in South Korea, about seven days ahead of 21 October. By that date it was already available in Europe, including for people in Italy and Switzerland, while the United States and other markets were said to be next in line. Two days later, Droid Life confirmed the start of the US rollout for the S23, S23+ and S23 Ultra, through Samsung and local carriers.
The Z Fold 5 and Z Flip 5 have followed a similar path: the update is under way in South Korea and Europe, with other markets expected in the coming weeks.
As always with Samsung, the rollout comes in waves. The file may reach one user and not another, even in the same country, depending on model, carrier and distribution batch.
Not just the flagships
The rollout covers dozens of models. Among the Galaxy A phones, according to 9to5Google, the stable version has already reached the A57, A37, A27, A56 and A36. The Galaxy A16 is close to the end of the One UI 9 beta: its stable update could arrive in a few weeks.
How to install it
Open Settings, then Software update, and choose Download and install. If the phone offers nothing, the update has not yet started for your country or carrier: try again in the following days rather than hunting for files of dubious origin. The update is a big one, so it is best to use Wi-Fi, have a fully charged battery and back up first.
What has not been announced
The outlets we consulted report neither build numbers common to all markets nor an official date for individual European countries. Samsung has not given a precise schedule for Italy and Switzerland.
What we think
The Galaxy S23 came out in early 2023 with Android 13. Receiving Android 17 today is concrete proof of Samsung’s update policy, and it matters to anyone who still owns an S23 or is weighing up a used one.
There is one detail not to overlook, though: SmartWorld indicates that this is the last major update for the series. After One UI 9, only periodic security patches will follow. That is no reason to skip the update; if anything, it is the reason to install it as soon as it is available, because it is the last version jump for these phones.
Those who use their phone for work can wait a few days to see whether any problems emerge in the first releases. Anyone who wants to know what changes in the interface can read One UI 9, the new features and our earlier piece on the arrival on the Galaxy S24.
Written by the SpazioiTech newsroom with the help of AI tools, from facts verified across at least two independent outlets, and checked before publication. Spotted a mistake? Tell us.
Translated from the Italian original. Read in Italian




