GoKawiilSamsung starts stable One UI 9 rollout for Galaxy A57 5G via Korea's Quantum 7
Samsung has pushed the stable, Android 17-based One UI 9 update to the Galaxy Quantum 7 in South Korea, the local variant of the Galaxy A57 5G, making it the first A-series phone to receive the finished build. The firmware carries the September 2026 security patch and arrives alongside One UI 9's rollout to the Galaxy S24 lineup and 2024 foldables. The US version of the Galaxy A57 5G has not yet received the update.