Samsung’s One UI 9.5 testing on the Galaxy A57 has moved on again. Tipster Tarun Vats spotted a newer internal build for the phone on November 13, with the firmware version A576BXXU7CZK3 for the international model.
| Build | Firmware | Status |
| First One UI 9.5 test build | A576BXXU6CZJ1 | Spotted October 7 |
| Previous test build | A576BXXU7CZJ8 | Spotted October 30 |
| Latest test build | A576BXXU7CZK3 | Spotted November 13 |
The build code has moved from the CZJ8 build we covered earlier to CZK3, which keeps the same U7 base and carries a November date code in place of October’s. The full version string is A576BXXU7CZK3/A576BOXM7CZK3/A576BXXU7CZK3. The post doesn’t say what changed between the two builds, and this is an internal test version rather than a beta, so it can’t be installed on any Galaxy A57.
The first One UI 9.5 build for the phone appeared in early October, just a day after the Galaxy A57 received stable One UI 9 in South Korea. That is far earlier than last year, when One UI 8.5 test firmware for the Galaxy A56 didn’t show up until December. Three builds in just over five weeks suggest Samsung is iterating steadily on the software, and the A57 isn’t expected to get One UI 9.5 before it debuts on the Galaxy S27 series.
A beta program for the phone hasn’t been announced, but Samsung’s One UI 9.5 beta may start earlier than the One UI 8.5 beta did, which would fit the steady stream of A57 builds.
M Adnan Akram is the founder and lead writer at Phoonomo, covering mobile technology with a primary focus on Samsung and the broader smartphone industry, alongside emerging developments in AI. He follows product launches, spec leaks, and industry trends closely to keep readers informed with timely updates.
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