One UI 9.5 beta release for Galaxy S26 Ultra gets spotted

TL;DR

One UI 9.5 beta firmware has appeared on Samsung servers for the Galaxy S26 Ultra, suggesting a launch is close.

The spotted build is S948BXXU6ZZK3, and the phone’s bootloader has moved from U5 to U6.

The beta program may open later this month or early next month, with a stable release expected on the Galaxy S27 series next year.

Samsung is close to finishing the One UI 9.0 rollout for all eligible Galaxy devices. Now, the company seems nearly ready to launch the One UI 9.5 Beta Program, as the next major update has started to appear on the Galaxy S26 Ultra.

A beta build of One UI 9.5 for the Galaxy S26 Ultra was recently spotted (via @Kailash0729) on Samsung's servers carrying firmware version S948BXXU6ZZK3. This indicates that the company could open beta registrations soon.

Judging by the newly spotted firmware string, Samsung has also upgraded the phone's bootloader version from U5 to U6.

Based on Samsung's recent track record, we expect the One UI 9.5 Beta Program to go live later this month or early next month. The update is based on Android 17, and its stable version could debut on the Galaxy S27 series early next year.

Asif Iqbal Shaik - Senior Editor

[email protected]

First Samsung device: T100

Asif is a computer engineer turned technology journalist. He has been using Samsung phones since 2004, and his current smartphone is the Galaxy S23 Ultra. He loves headphones, mechanical keyboards, and PC hardware. When not writing about technology, he likes watching crime and science fiction movies and TV shows.

Firmware Phone Android 17 Galaxy S26 Galaxy S26 Ultra One UI 9.5

One UI 9.5 beta release gets closer as it is spotted on the Galaxy S26 Ultra

TL;DR

Asif Iqbal Shaik - Senior Editor