Samsung Galaxy S25 One UI 8.5 Beta 4 Rolls Out in Select Regions

One UI 8.5 Beta 4 rolls out to Galaxy S25

Samsung appears to be rolling out the One UI 8.5 beta update to devices enrolled in its beta programme. The Galaxy S25 series is the first to receive the new beta software, based on Android 16, in select markets. The rollout follows a third One UI 8.5 beta that was released earlier this year. The update is around 1.5GB in size and includes the February 5, 2026 security patch.

Firmware versions cited by testers include S938BXXU7ZZAL, S938BOXM7ZZAL and S938BXXU7CZAJ. The update has been observed in Germany, the United Kingdom and the United States, with prior availability reported in South Korea. Samsung has not issued a broad confirmation in the text, but multiple posts indicate the rollout is underway for beta participants.

Bug fixes and improvements listed in the beta

The One UI 8.5 Beta 4 update contains many new features and bug fixes. The primary focus of this update has been on fixing issues associated with previous beta versions. Some notable fixes and improvements are: resolved minor issues caused by the Lock screen clock moving down; search history now works correctly in the Phone app; fixed issues connecting to Bluetooth headsets during calls; and fixed issues when pasting phone numbers into the keypad after selecting a call link. The release also mentions improvements related to AI Select.

In another line of notes, the beta 4 update addresses issues with the AI features and minor reliability tweaks that testers described. These entries are based on community posts and the official changelog carried by testers. The intent is to stabilize everyday tasks on Galaxy S25 devices enrolled in the beta programme.

Direct Voicemail possibility and future plan for One UI 8.5

In a separate post, tipster Tarun Vats claims that the fourth One UI 8.5 beta brings a Direct Voicemail feature for the Galaxy S25 series. This feature would allow users to automatically send all incoming calls to voicemail after a set time. Reportedly the voicemails would be visible in the Samsung Phone app with a text transcript while recording. Users would also have the ability to manually redirect calls to voicemail.

Samsung is believed to launch One UI 8.5 with the Galaxy S26 series. The Galaxy Unpacked event for the lineup is said to take place on February 25. The update could bring additional features such as support for Pro camera presets, Network Battery Saver and Priority Notifications. It is also said to include a new LockStar module version 8.5.00.8 with hundreds of new unlock animations for personalization.

• Update size around 1.5GB
• February 5 2026 security patch
• Direct Voicemail feature claimed by Tarun Vats
• Rollout outlined for Germany, the UK and the US; previously in South Korea

The article reflects information from the transcript data and does not assert new facts beyond what was presented. Officials have not been quoted directly in this report. The next steps for Galaxy S25 beta testers and the timeline for Galaxy S26 remain to be confirmed by Samsung.