Samsung has started pushing One UI 8.5 to the Galaxy S25 FE, with the first rollout landing in South Korea and bringing the June 2026 security patch along for the ride. The update is based on Android 16, weighs about 324 MB, and carries build number S731NKSS7BZF1.
The rollout began on 10 June 2026, according to Tarun Vats, and is still tied to the Korean market for now. That is classic Samsung: first a narrow release, then a wider spread if nothing catches fire. For owners elsewhere, the sensible move is to keep checking for the software update in Settings rather than waiting for a dramatic push notification from the heavens.
What One UI 8.5 brings to the Galaxy S25 FE
Samsung is pitching the package as more than just a security patch. One UI 8.5 adds general interface improvements, better stability, and the latest protection update, which is exactly the sort of maintenance users expect from a mid-cycle release on a premium phone. It is not flashy, but it is the kind of update that quietly reduces complaints later.
- Update: One UI 8.5
- Base: Android 16
- Build number: S731NKSS7BZF1
- Size: about 324 MB
- Security patch: June 2026
Galaxy S25 FE rollout should widen soon
Samsung typically stages these releases by region and carrier, so a Korea-first launch is no surprise. The more interesting part is timing: if the company keeps to its usual pace, other markets should see the update in the coming days or within a week. That puts the S25 FE ahead of the usual ”maybe next month” dance that Android owners know all too well.
Tarun Vats has built a reputation for surfacing Samsung software plans early, including accurate calls on One UI beta timing. That track record does not make every forecast gospel, but it does make this rollout watch worth taking seriously. The real question now is whether Samsung uses the same quick tempo for the rest of the Galaxy S25 family, or whether the FE gets the fast lane while everyone else waits.