Samsung has released the fourth beta version of One UI 8.5 for the Galaxy S25 series. This update targets the Galaxy S25, Galaxy S25+, and Galaxy S25 Ultra.
The rollout started in South Korea, with expansion to other regions including the US, UK, Germany, and India. It reaches users enrolled in the One UI 8.5 beta program through the Samsung Members app.
Key Details of the Update
- Firmware version: Ends in ZZAL.
- Size: Around 1.5GB (varies slightly by model and region).
- Security patch: February 5, 2026.
- How to check: Go to Settings > Software update > Download and install (only available if enrolled in the beta program).
The update focuses on stability. It includes bug fixes and reliability improvements across the system.
A new feature added is Direct Voicemail. This tool lets callers leave messages directly when the line is busy or unanswered, with live transcriptions available in some cases.
Other changes address reported issues from previous betas, such as problems in the Phone app and general performance tweaks.
Samsung continues testing One UI 8.5 on the current flagship series. The stable version is expected to arrive with the next flagship launch, likely the Galaxy S26 series.
Beta participants should monitor the Samsung Members app for notifications. Participation carries risks like potential bugs, so back up data before installing.
One UI 8.5 Beta 4 Rolls Out for Galaxy S25 Series
For structure in the article:
Use H1 for the headline.
H2 for sections like “Availability and Installation”, “What’s New in Beta 4”, “Context on One UI 8.5”.
Use bullet points for changelog items or eligibility.
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