Samsung has slipped a useful security tweak into the Galaxy S25 FE’s first post-One UI 8.5 update: a new option that lets users rescan registered fingerprints to improve recognition accuracy. It is a small change, but the kind people notice the first time their phone stops rejecting a thumb in a hurry.
The feature first appeared with the Galaxy S26 series, and it arrives with the May 2026 security update. Samsung’s aim is straightforward: reduce those annoying moments when the sensor misses a finger it should already know. For a phone that leans on biometric unlocking for payments, app access, and basic convenience, that is not fluff.
How the new fingerprint option works
Users can find the option by going to Settings, then Lockscreen and AOD, then Screen lock and biometrics, entering a PIN, opening Fingerprints, selecting a saved print, and tapping Improve accuracy. From there, the phone asks you to scan the same finger again, essentially giving the existing fingerprint profile a tune-up rather than forcing you to delete and re-add it.
- Available in the May 2026 security update for the Galaxy S25 FE
- Lets users rescan an already registered fingerprint
- Designed to improve first-try fingerprint recognition
Samsung’s rollout still looks uneven
The update was first released in South Korea with firmware version S731NKSS7BZE1. Samsung has also pushed a European and broader global build, S731BXXS6BZE2, but it is still unclear whether that version includes the same fingerprint feature. The company has a habit of staging these additions by region, which is great for testing and less great for anyone outside the first wave wondering why their menu looks slightly different.
That uncertainty fits Samsung’s broader software pattern: the company has become much better at shipping meaningful maintenance updates, but it still tends to spread features unevenly across markets. The upside is that the S25 FE is getting more than just a routine patch; the downside is that owners in some regions may have to wait and see whether their build got the same biometric upgrade.
Why this Galaxy S25 FE update matters
Fingerprint sensors have improved a lot, but they are still sensitive to placement, worn skin, and the occasional bad angle. A built-in recalibration tool is a smart fix because it works with the sensor users already have instead of pretending every miss is their fault. If Samsung keeps extending this to more Galaxy models, it could quietly become one of those features that people only appreciate after they lose it.