The Galaxy S25 beta participant can now download the fourth beta of One UI 8.5. The third beta update was received by these units last month, and now the latest beta 4 is rolling out to the US, Korea, the UK, Germany, and India.
The brand new beta is dropped with build version ZZAL and the package of the update comes in a OTA file size of 1.5 GB.
Beta 4 brings direct voicemail as a main highlighting feature and offers incoming voicemails real-time transcription. It also allows users to jump into the call mid-message. These new functions will elevate the calling experience. Notably, the same feature is already available in the Apple iPhones.
Along with new functions, the software fixes more than five crucial issues that persisted after the One UI 8.5 Beta 3 release. The changelog contains details of all of these new fixes, which are listed below.
One UI 8.5 Beta 4 Changelog
- Fixed a bug where the call would automatically go to speakerphone.
- Fixed an error that occurred when checking call history in the Phone app.
- Fixed an issue where, in certain situations, only one person on the other end could hear audio during calls while a Bluetooth headset was connected.
- Fixed a bug where tapping the call log icon would paste the phone number to the keypad.
- Fixed an issue where selecting “Copy” in AI Select did not automatically close the AI Select menu.
Aside from these fixes, the software also contains the latest from February 2026. Android security patches to improve the S25 unit’s security and stability.
Reportedly the Galaxy S26 series launch is set for January 25 with One UI 8.5 out of the box. The release of the stable version of the One UI 8.5 update will only be possible following the release of these next S series flagships.
