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Samsung Galaxy S25 One UI 8.5 Beta 5 Update: Full US Rollout Details

Samsung has officially expanded the availability of its latest software testing phase, releasing the fifth beta version of One UI 8.5 (based on Android 16 QPR2) for the Galaxy S25 series in the United States. This move follows the initial rollout in India, Europe, and the United Kingdom, signaling that the tech giant is in the final stages of refining its next major user interface before the stable release.

  • ✨ Fifth beta of One UI 8.5 is now live for US users.
  • ✨ Includes critical updates for the Bixby voice assistant.
  • ✨ Firmware version S93xU1UEU7ZZAN weighs in at approximately 547.48MB.
  • ✨ Stable release expected to debut with the Galaxy S26 series in early 2026.
Samsung One UI 8.5 logo on a Galaxy device

What is New in the One UI 8.5 Beta 5 Update?

The latest update for the Galaxy S25 series in the US is currently hitting carrier-unlocked versions of the device. The package carries the firmware version S93xU1UEU7ZZAN and requires a download of about 547.48MB. According to the official changelog, the primary focus of this specific build is the application of a Bixby version update, aimed at enhancing the intelligence and responsiveness of Samsung's native virtual assistant. This information was shared via social media by Oscar Lachapel.

Screenshot of the Galaxy S25 One UI 8.5 Beta 5 update screen showing firmware details

How to Install the Beta Update on Your Device

If you are already enrolled in the One UI 8.5 beta program, you can check for the update manually. Navigate to Settings, select Software update, and then tap Download and install. While the update is currently confirmed for carrier-unlocked models, it is highly likely that carrier-locked variants will receive the notification shortly. Please ensure your device has at least 50% battery and a stable Wi-Fi connection before beginning the installation process.

Looking ahead, Samsung is expected to launch the stable, final version of One UI 8.5 alongside the highly anticipated Galaxy S26 series. The official unveiling is slated for the Galaxy Unpacked event on February 25, 2026. Following that event, the stable update will begin rolling out to all eligible Galaxy smartphones and tablets globally.

Which Galaxy S25 models are eligible for the Beta 5 update in the US?

Currently, the update is being reported for carrier-unlocked versions of the Galaxy S25, Galaxy S25+, and Galaxy S25 Ultra. Carrier-locked models usually follow shortly after.

What is the firmware version for this US release?

The firmware version for this update is identified as S93xU1UEU7ZZAN.

What are the main improvements in this beta version?

The primary change listed in the documentation is an update to the Bixby assistant, though beta versions also typically include under-the-hood stability fixes for Android 16 QPR2.

When will the stable version of One UI 8.5 be released?

The stable version is expected to debut on February 25, 2026, during the launch of the Galaxy S26 series.

How much storage space is required for the update?

The update file size is approximately 547.48MB, so ensure you have enough free space on your device before downloading.

🔎 In conclusion, the arrival of the fifth beta in the US indicates that Samsung is nearing the finish line for the One UI 8.5 development cycle. While this specific update focuses heavily on Bixby, the overall progression suggests a smoother, more refined experience is coming for all users. If you are a beta tester, now is the time to ensure your device is running the latest build to help Samsung squash any remaining bugs before the grand stable release in February.